%0 Journal Article %A S. G. Pyatkov %T Riesz completeness of the~eigenelements and associated elements of linear selfadjoint pencils %J Sbornik. Mathematics %D 1995 %P 343-361 %V 81 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1995_81_2_a4/ %G en %F SM_1995_81_2_a4