%0 Journal Article %A A. P. Nagurnyi %T Many years and seasonal change of sea ice thickness in arctic basin %J Doklady Akademii Nauk %D 1997 %P 673-675 %V 353 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1997_353_5_a13/ %G ru %F DAN_1997_353_5_a13