Viking 2 (Esperanto Wikipedia)

Analysis of information sources in references of the Wikipedia article "Viking 2" in Esperanto language version.

refsWebsite

Global rank Esperanto rank

75^th place

30^th place

nasa.gov

nssdc.gsfc.nasa.gov

Williams, David R. Dr.. Viking Mission to Mars. NASA (18a de Decembro 2006). Alirita 2a de Februaro 2014 .
"Viking 2 Orbiter". National Space Science Data Center. Alirita la 1an de Aŭgusto, 2021.