%0 Journal Article %A B. R. Vainberg %T On the analytical properties of the resolvent for a certain class of operator-pencils %J Sbornik. Mathematics %D 1968 %P 241-273 %V 6 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1968_6_2_a6/ %G en %F SM_1968_6_2_a6