%0 Journal Article %A Yu. M. Dyukarev %T Deficiency numbers of symmetric operators generated %J Sbornik. Mathematics %D 2006 %P 1177-1203 %V 197 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2006_197_8_a4/ %G en %F SM_2006_197_8_a4