%0 Journal Article %A E. V. Chernokozhin %A Yu. V. Shestopalov %T A method of calculation of characteristic numbers of a meromorphic operator-valued function %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1985 %P 1413-1416 %V 25 %N 9 %U http://geodesic.mathdoc.fr/item/ZVMMF_1985_25_9_a14/ %G ru %F ZVMMF_1985_25_9_a14