Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T12:28:03.993825Z
Paper Citation Record · LEDGER
As of 16 August 2026, this Paper Citation Record lists 20 of 20 outbound references and 0 inbound Pith citation observations for arXiv:1908.07834.
A citation records a reference. It does not transfer a finding from one paper to another.
Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T12:28:03.993825Z
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-16T06:30:59.297886+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
20 of 20 outbound references displayed
External citation measurements
No source-named external measurement is stored.
Observation 229b54d1-b2f6-4eb0-9027-fa00616b4230 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning Evolution of scientific ballooning and its impact on astrophysics research,
Reference 1
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 4506a7ed-12bd-4517-ad32-82d63c2b4b27 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning High-altitude balloon launches and hands-on sensors for effective student learning in astronomy and STEM,
Reference 2
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 316c5f2f-a1ce-4a8f-8d14-f661e05fb3ba · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning Microbiome of the upper troposphere: species composition and prevalence, effects of tropical storms, and atmospheric implications,
Reference 3
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation f3fadf71-af78-4e86-92da-f25502da8a33 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning UV-resistant bacteria isolated from upper troposphere and lower stratosphere,
Reference 4
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 4e932c49-2306-45f1-97f0-eacafe2e0b5f · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning DesigningBiologicalExperimentationSystemsforHighAltitudeBallooning,
Reference 5
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 53d2bd80-b7b9-465d-85e6-2907503b5f9b · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning Project Zephyrus: Developing a rapidly reusable high-altitude flight test platform,
Reference 6
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation c2d40de7-51b9-411f-bea7-6e137faca8e5 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning APRS: Automatic Packet Reporting System,
Reference 7
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation d09d9b15-270e-4c31-b11d-fd23901e8b1a · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning APRS-IS,
Reference 8
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 7287e480-e7a7-4d3b-b2c0-3345c44c0de7 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning High Altitude Ballooning Operations During the 2017 Solar Eclipse,
Reference 9
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 2271a0e1-9240-423b-adcc-931c0c93ccde · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning Habduino Kit,
Reference 10
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 0f5ef90a-8360-4514-a4fe-e3a93d27386a · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning MicroTrak,
Reference 11
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 38b6c0e3-df57-41d4-99cf-2a11519202ab · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning HighAltitudeBalloonOperationsintheMid-AtlanticStates,
Reference 12
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation e6792f28-6132-4fd6-a2c8-01d4fb942d83 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning VHF/UHF FM Dual Bander Data Communicator TM-D700A/E,
Reference 13
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 4e72d1b6-7256-4db1-a846-6363835ea4d7 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning NMEA 0183: A GPS receiver interface standard,
Reference 14
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation a26c62b6-97aa-4115-9736-eb6a90ff920f · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning Raspbian,
Reference 15
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation e6a57258-0d24-4761-ae88-c40898c34138 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning DireWolf,
Reference 16
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 96c66738-fc0a-4aba-bb6b-f31f4db12de9 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning Yet Another APRS Client,
Reference 17
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 8484c608-d9c4-4420-818a-171854521c65 · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning Antenna deployment for Automatic Packet Reporting System of nanosatellite using Global Positioning System as a height sensor,
Reference 18
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation ef07e2f3-affa-4989-96dd-b9c715b7b4bf · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning URLhttp://www.qsl.net/4nec2/
Reference 19
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation d5b6ddfd-8d5f-45b6-8033-74ad9852266d · outbound
Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning VHF-UHF Long Boom, Very High Performance Antenna Designs,
Reference 20
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
No inbound Pith citation observations are available.