%0 Journal Article %A A. P. Nagurnyi %A A. V. Shirochkov %T Total ozone content variability in the polar area, from the data of the arctic expedition aboard the nuclear icebreaker SIBIR (May--June, 1987) %J Doklady Akademii Nauk %D 1989 %P 1099-1103 %V 308 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_308_5_a17/ %G ru %F DAN_1989_308_5_a17