File:Apollo 13 - HAL.png - Wikimedia Commons
13 MORE Things That Saved Apollo 13, part 3: Detuning the Saturn V's 3rd Stage Radio - Universe Today
How Mission Control saved Apollo 13 | BBC Sky at Night Magazine
Talking with the Moon: Inside Apollo's premodulation processor
Apollo 13 Flight Journal - Day 3, part 4: Free Return
PDF) Communications Management Plan for Apollo 13 | Ricardo Ximenes - Academia.edu
Reverse-engineering the Apollo spacecraft's FM radio
13 MORE Things That Saved Apollo 13, part 6: The Mysterious Longer-Than-Expected Communications Blackout - Universe Today
Unified S-band - Wikipedia
Apollo 13 - Wikipedia
Talking with the Moon: Inside Apollo's premodulation processor
13 MORE Things That Saved Apollo 13, part 6: The Mysterious Longer-Than-Expected Communications Blackout - Universe Today
From the Archives, 1970: Weak signals from Apollo 13
Engineering The Communications System For Apollo 11 - General Dynamics
13 MORE Things That Saved Apollo 13, part 6: The Mysterious Longer-Than-Expected Communications Blackout - Universe Today
ARIA 4 - Apollo 13 story
Design Your Culture, Apollo 13 Style — A Human Workplace
Apollo 13's Lifeboat Fifty Years On: Remembering Grumman's Lunar Module and Program Director Joe Gavin | Andrew S. Erickson
Apollo 13 Flight Journal - Day 1, part 4: Settling down for the Flight
Canberra's 'crucial' role in Apollo 13 rescue - ABC News
How were the astronauts walking on the Moon able to communicate with mission control in Houston? - Quora
Members of Apollo 13 Team Reflect on 'NASA's Finest Hour' | NASA
Apollo 13: 'Houston, We've Had a Problem' - YouTube
Apollo 13 Flight Journal - Day 3, part 5: Minimising Power
Apollo 13 Flight Journal - Day 3, part 2: 'Houston, we've had a problem'
Reverse-engineering the Apollo spacecraft's FM radio
