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Soyuz 31 (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Soyuz 31" in Portuguese language version.

refsWebsite
Global rank Portuguese rank
1spacefacts.de
5,378th place
1,214th place
1astronautix.com
2,056th place
1,513th place

astronautix.com

  • Mark Wade. «Soyuz 31». Encyclopedia Astronautica. Consultado em 21 de julho de 2019 

spacefacts.de

  • Joachim Becker e Heinz Janssen (21 de maio de 2019). «Soyuz 31». SPACEFACTS. Consultado em 21 de julho de 2019