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Computer software for maintenance engineering including work order processing, life cycle cost analysis, and reliability applications.

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The VSM: Energia and Buran

http://vsm.host.ru/r_buran.htm

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ThoughtCo - Women Astronauts

https://www.thoughtco.com/notable-women-astronauts-4123261

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ThoughtCo - Apollo 13: A Mission in Trouble

https://www.thoughtco.com/apollo-13-a-mission-in-trouble-3073470

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The Apollo Program

http://nssdc.gsfc.nasa.gov/planetary/lunar/apollo.html

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The Project Apollo Archive

http://www.apolloarchive.com/

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The Soviet Manned Lunar Program

http://www.fas.org/spp/eprint/lindroos_moon1.htm

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The Mir that fell to Earth

http://news.bbc.co.uk/1/hi/sci/tech/85074.stm

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