Viking-programmet (Norwegian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Viking-programmet" in Norwegian language version.

Last modified: 18:07:58, 27 June 2023 (UTC)

Ref.Un. Ref.Website

Global rank Norwegian rank

12^th place

135^th place

11books.google.com

3^rd place

33^rd place

11metapress.com

low place

4,299^th place

books.google.com (Global: 3^rd place; Norwegian: 33^rd place)

Hugh H. Kieffer (1992). Mars. University of Arizona Press. ISBN 9780816512577. Besøkt 7. mars 2011.

metapress.com (Global: low place; Norwegian: 4,299^th place)

pep.metapress.com

J C Bridges (2011). «Planetary protection and Mars sample return». Journal of Aerospace Engineering. 225 (2): 239–246. Besøkt 3. februar 2011. ^{[død lenke]}

nasa.gov (Global: 12^th place; Norwegian: 135^th place)

nssdc.gsfc.nasa.gov

(en) Viking 1 Orbiter: Mission Profile (NASA NSSDC)