https://nrc-publications.canada.ca/eng/view/object/?id=845c1db1-37e0-47eb-ba01-5e659900151b
Trafficability study for the Soviet nuclear icebreaker Rossia voyage to the North Pole: July 31 to...
Trafficability study for the Soviet nuclear icebreaker Rossia voyage to the North Pole: July 31 to August 15, 1990
for thenuclear icebreakernorth poletrafficabilitystudy