Molniya (satellite) (English Wikipedia)

Mark Wade. "Molniya-2". astronautix.com. Archived from the original on 28 December 2016.
Mark Wade. "Molniya-3". astronautix.com. Archived from the original on 28 December 2016.

bis-space.com

Hendrickx, Bart. "A History of Soviet/Russian Meteorological Satellites" (PDF). bis-space.com. Antwerpen, Belgium. p. 66. Archived from the original (PDF) on 27 March 2018. Retrieved 22 February 2019.

Martin, Donald H. (2000). Communication Satellites. AIAA. pp. 215–. ISBN 9781884989094. Retrieved 1 January 2013.
History Committee of the American Astronautical Society (23 August 2010). Stephen B. Johnson (ed.). Space Exploration and Humanity: A Historical Encyclopedia. Vol. 1. Greenwood Publishing Group. p. 416. ISBN 978-1-85109-514-8. Retrieved 17 April 2019.
Rockets and People, Volume III, Hot Days of the Cold War. Government Printing Office. p. 510. ISBN 978-0-16-081733-5.

Robert A. Braeunig. "Basics of Space Flight: Orbital Mechanics". www.braeunig.us. Archived from the original on 4 February 2012. Retrieved 6 March 2019.

Kidder, Stanley Q.; Vonder Haar, Thomas H. (18 August 1989). "On the Use of Satellites in Molniya Orbits of Meteorological Observation of Middle and High Latitudes". Journal of Atmospheric and Oceanic Technology. 7 (3): 517. Bibcode:1990JAtOT...7..517K. doi:10.1175/1520-0426(1990)007<0517:OTUOSI>2.0.CO;2.
Wertz, James Richard; Larson, Wiley J. (1999). Wiley J. Larson and James R. Wertz (ed.). Space Mission Analysis and Design. Bibcode:1999smad.book.....W.

Kolyuka, Yu. F.; Ivanov, N.M.; Afanasieva, T.I.; Gridchina, T.A. (28 September 2009). Examination of the Lifetime, Evolution and Re-Entry Features for the "Molniya" Type Orbits (PDF). 21st International Symposium of Space Flight Dynamics. Toulouse, France: Mission Control Center 4, Korolev, Moscow. p. 2. Retrieved 22 May 2018.

Anatoly Zak. "Russian communications satellites". Russian Space Web. Retrieved 22 May 2018.
Zak, Anatoly. "The Meridian satellite (14F112)". RussianSpaceWeb. Archived from the original on 26 May 2011. Retrieved 3 May 2011.

Joel Achenbach (3 January 2012). "Spaceship Earth: The first photos". The Washington Post. Retrieved 16 June 2020.

Robert A. Braeunig. "Basics of Space Flight: Orbital Mechanics". www.braeunig.us. Archived from the original on 4 February 2012. Retrieved 6 March 2019.
Mark Wade. "Molniya-2". astronautix.com. Archived from the original on 28 December 2016.
Hendrickx, Bart. "A History of Soviet/Russian Meteorological Satellites" (PDF). bis-space.com. Antwerpen, Belgium. p. 66. Archived from the original (PDF) on 27 March 2018. Retrieved 22 February 2019.
Mark Wade. "Molniya-3". astronautix.com. Archived from the original on 28 December 2016.
Zak, Anatoly. "The Meridian satellite (14F112)". RussianSpaceWeb. Archived from the original on 26 May 2011. Retrieved 3 May 2011.