Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-06T19:46:38.863441Z
Paper Citation Record · LEDGER
Local limit of Prim's algorithm
As of 9 August 2026, this Paper Citation Record lists 59 of 59 outbound references and 0 inbound Pith citation observations for arXiv:2507.04867.
A citation records a reference. It does not transfer a finding from one paper to another.
Coverage vector
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-08T06:32:00.761636+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links
A source-named dated measurement, never combined with another source.
Source: cited_works
Reference resolution
59 of 59 outbound references displayed
- verified exact4
- verified fuzzy37
- unresolved17
- parse uncertain0
- malformed identifier0
- metadata mismatch1
External citation measurements
No source-named external measurement is stored.
Outbound references
Observation 71254358-ad21-4738-9ccd-5d65c5ab2429 · outbound
This paper cites The local weak limit of the minimum spanning tree of the complete graph.
Local limit of Prim's algorithm The local weak limit of the minimum spanning tree of the complete graph
Reference 1
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T19:46:34.115350Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation f9aebc12-2ef4-478f-b28e-32e7d0a7a18c · outbound
This paper cites Addario-Berry, N.
Local limit of Prim's algorithm Addario-Berry, N
Reference 2
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:49.573925Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 84ad4434-7108-42b6-8007-44b96c648e5d · outbound
This paper cites Addario-Berry and S.
Local limit of Prim's algorithm Addario-Berry and S
Reference 3
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:49.441585Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 016f20be-bcce-44e9-b3de-e8fd287b04de · outbound
This paper cites Albenque, L.
Local limit of Prim's algorithm Albenque, L
Reference 4
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:49.268110Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 0921dee4-a9d8-4726-86e4-92501eb51627 · outbound
This paper cites Aldous and J.
Local limit of Prim's algorithm Aldous and J
Reference 5
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:49.056788Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 03c2d148-1e06-4650-800f-1d006fe96948 · outbound
This paper cites Aldous and J.
Local limit of Prim's algorithm Aldous and J
Reference 6
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:48.881719Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 6e7795bd-ed5e-4a36-adc9-4ded0a40a211 · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 7
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:48.686618Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation c68eec64-5d88-461a-8073-062581715c41 · outbound
This paper cites Anandkumar and R.
Local limit of Prim's algorithm Anandkumar and R
Reference 8
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:48.528126Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 655dff35-71f5-445e-9438-464a3d525d89 · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 9
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:48.372718Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation e05c6815-cf74-4ea7-894a-1306caf99419 · outbound
This paper cites Local weak convergence and its applications.
Local limit of Prim's algorithm Local weak convergence and its applications
Reference 10
- Resolution
- verified exact
- local_arxiv, observed 2026-08-06T19:46:39.786481Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 2d39f6f0-7ac0-46e9-93a9-512aba57ba79 · outbound
This paper cites Benjamini, A.
Local limit of Prim's algorithm Benjamini, A
Reference 11
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:48.185708Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 4a1c9f83-6aa8-4c2b-8c99-a7541d936ab8 · outbound
This paper cites Benjamini and O.
Local limit of Prim's algorithm Benjamini and O
Reference 12
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:48.020703Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation a52e859e-11a5-4b18-b0b8-177c0fd7a1b1 · outbound
This paper cites Berger, C.
Local limit of Prim's algorithm Berger, C
Reference 13
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:47.887078Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 12f764fd-5402-407e-875c-ec6130ee2bd8 · outbound
This paper cites Bhamidi, S.
Local limit of Prim's algorithm Bhamidi, S
Reference 14
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:47.716536Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 900ee1db-563c-45ab-9b7d-4668c9a156bd · outbound
This paper cites Bhamidi and S.
Local limit of Prim's algorithm Bhamidi and S
Reference 15
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:47.519910Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 471fad72-3427-4479-ac20-20050b99dacc · outbound
This paper cites Billingsley.
Local limit of Prim's algorithm Billingsley
Reference 16
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:47.370689Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 8c773029-81b4-47d7-ac76-a1bb215e902c · outbound
This paper cites Bollob´ as, S.
Local limit of Prim's algorithm Bollob´ as, S
Reference 17
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:47.217044Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 37ece930-07ef-43d0-b1d7-5ccd01d5f52d · outbound
This paper cites Bordenave, M.
Local limit of Prim's algorithm Bordenave, M
Reference 18
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:47.030490Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 64c40715-03f0-4a66-95bf-f9160b659c51 · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 19
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:46.881857Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 85d2d610-f0cc-4fd3-ad00-f6801cd05325 · outbound
This paper cites Coja-Oghlan, C.
Local limit of Prim's algorithm Coja-Oghlan, C
Reference 20
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:46.697600Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation f4a2260d-3e77-4768-8d37-3891f51b0c2b · outbound
This paper cites Contreras, S.
Local limit of Prim's algorithm Contreras, S
Reference 21
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:46.457642Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation c7acb4b6-967d-4ffd-ac45-ad62b7c5119a · outbound
This paper cites Dembo and A.
Local limit of Prim's algorithm Dembo and A
Reference 22
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:46.208415Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation c524b3d1-b0bf-47ca-bf6b-4cfc5febd233 · outbound
This paper cites Dembo, A.
Local limit of Prim's algorithm Dembo, A
Reference 23
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:46.049834Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 75781649-0d28-40bb-80c0-712b690d9f2e · outbound
This paper cites Dobrin and P.
Local limit of Prim's algorithm Dobrin and P
Reference 24
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:45.753932Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 2cf45458-1ab1-4e98-a60a-b5f8f07d2e68 · outbound
This paper cites Dommers, C.
Local limit of Prim's algorithm Dommers, C
Reference 25
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:45.515704Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 13f49379-19bd-41a2-b1ed-9fceb3c1a101 · outbound
This paper cites Local weak limit of dynamical inhomogeneous random graphs.
Local limit of Prim's algorithm Local weak limit of dynamical inhomogeneous random graphs
Reference 26
- Resolution
- verified exact
- local_arxiv, observed 2026-08-06T19:46:39.648513Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 7dd8269a-512f-42ff-a4ee-fb23bf3bd104 · outbound
This paper cites The critical percolation probability is local.
Local limit of Prim's algorithm The critical percolation probability is local
Reference 27
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T19:46:36.351669Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 3f451d02-75e9-4b3e-8c21-ad086bd98e5d · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 28
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:45.191793Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation b1574e50-ad85-44ed-8a99-d9cd74f261ae · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 29
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:44.915784Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 817b7c3a-cc43-4f58-b36c-b417a0d2a31b · outbound
This paper cites Garavaglia, R.
Local limit of Prim's algorithm Garavaglia, R
Reference 30
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T19:46:36.512304Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation d889a7a1-d368-4277-8c24-8c9477bb6475 · outbound
This paper cites Garavaglia, R.
Local limit of Prim's algorithm Garavaglia, R
Reference 31
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:44.626377Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 7140a483-7bd1-4ba8-9cb7-82cbe9952243 · outbound
This paper cites Grimmett.
Local limit of Prim's algorithm Grimmett
Reference 32
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:44.356682Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 13efad39-7372-43f2-9d36-adb967278944 · outbound
This paper cites Percolation on preferential attachment models.
Local limit of Prim's algorithm Percolation on preferential attachment models
Reference 33
- Resolution
- verified exact
- local_arxiv, observed 2026-08-06T19:46:39.416030Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 38edefb4-d0af-4358-8f3b-e1c9ec492d68 · outbound
This paper cites Heydenreich and R.
Local limit of Prim's algorithm Heydenreich and R
Reference 34
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:44.142863Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 262215d7-b807-433f-83ba-7c721fe1a68b · outbound
This paper cites van der Hofstad.
Local limit of Prim's algorithm van der Hofstad
Reference 35
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T19:46:36.914261Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 16fa588c-0514-4e64-a855-4bc6803e74d2 · outbound
This paper cites van der Hofstad.
Local limit of Prim's algorithm van der Hofstad
Reference 36
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:43.961705Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation dc348933-bb02-48ac-bf0c-4cd6574b5f41 · outbound
This paper cites Are giants in random digraphs `almost' local?.
Local limit of Prim's algorithm Are giants in random digraphs `almost' local?
Reference 37
- Resolution
- metadata mismatch
- local_arxiv, observed 2026-08-06T19:46:39.172921Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation e6917fd4-3214-4b96-88fe-41abf14b850f · outbound
This paper cites van der Hofstad and F.
Local limit of Prim's algorithm van der Hofstad and F
Reference 38
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:43.767584Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation d5eb4373-d185-4027-9eeb-8df1d859148e · outbound
This paper cites van der Hofstad, P.
Local limit of Prim's algorithm van der Hofstad, P
Reference 39
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:43.504072Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 837a1225-238f-4e81-853f-6717858eec3a · outbound
This paper cites Huo and R.
Local limit of Prim's algorithm Huo and R
Reference 40
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:43.271053Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 54bd8a42-06e5-4e43-8c88-78a4d201a9a5 · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 41
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:43.036589Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 68509781-b4a7-47bf-b04d-4ca996e5ebf9 · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 42
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:42.821008Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 2100febf-8dc3-499d-aae1-1b25aaaf4f67 · outbound
This paper cites Kurauskas.
Local limit of Prim's algorithm Kurauskas
Reference 43
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:42.622621Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 51441848-9000-4392-a349-5212e5cc7449 · outbound
This paper cites Lacker, K.
Local limit of Prim's algorithm Lacker, K
Reference 44
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:42.392856Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 2815805f-8a8e-4180-b5aa-02058fecaba4 · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 45
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:42.171810Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation a4fa2145-9dad-4e2a-8de4-d00270f04151 · outbound
This paper cites Michelen, R.
Local limit of Prim's algorithm Michelen, R
Reference 46
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:42.014168Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 52fb4ee1-6bfb-4229-88ce-db33dcd06a25 · outbound
This paper cites Milewska, R.
Local limit of Prim's algorithm Milewska, R
Reference 47
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:41.790711Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation a15a1d4f-df13-4e7d-aef8-c897e6bbb48d · outbound
This paper cites SIR on locally converging dynamic random graphs.
Local limit of Prim's algorithm SIR on locally converging dynamic random graphs
Reference 48
- Resolution
- verified exact
- local_arxiv, observed 2026-08-06T19:46:39.021670Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation c62eb258-f0ab-4a29-99a9-acd3d57f7435 · outbound
This paper cites Montanari, E.
Local limit of Prim's algorithm Montanari, E
Reference 49
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:41.580369Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 978786a8-2bda-4b94-97ca-3ed8abb106cf · outbound
This paper cites Mountford, D.
Local limit of Prim's algorithm Mountford, D
Reference 50
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:41.335288Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 688f7e36-0ae5-417c-8e16-337c64f821f4 · outbound
This paper cites Nachmias and P.
Local limit of Prim's algorithm Nachmias and P
Reference 51
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:41.063706Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 3d9d2c5d-6985-41bc-bd96-12c51c9df300 · outbound
This paper cites Neˇ setˇ ril, E.
Local limit of Prim's algorithm Neˇ setˇ ril, E
Reference 52
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:40.906809Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation fb5be6a8-169a-4eed-bd1e-df6be58ef0b7 · outbound
This paper cites Pettie and V.
Local limit of Prim's algorithm Pettie and V
Reference 53
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:40.682311Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 47111f1d-a0cd-42ae-8bba-b87fc4a6955d · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 54
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:40.554662Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 71162026-522a-411a-952f-6c7291850c14 · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 55
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:40.442409Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation d9caec10-f551-47b2-9a91-a1e4e3ca6633 · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 56
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:40.311218Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 432bc5fd-0ee1-4279-b8a9-0b96f4d26f03 · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 57
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:40.197091Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 6b5a800e-695e-4a23-aebe-613f73392f4c · outbound
This paper cites an unresolved cited work.
Local limit of Prim's algorithm Unresolved cited work
Reference 58
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T19:46:40.046584Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation a36aabfd-7826-4e6d-8ce8-1560633ed58d · outbound
This paper cites Yu and Y.
Local limit of Prim's algorithm Yu and Y
Reference 59
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T19:46:39.913906Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Pith citing papers
No inbound Pith citation observations are available.