%0 Journal Article %A S. A. Vugal'ter %A G. M. Zhislin %T On the discrete spectrum of Schr\"odinger operators of many-particle systems with two-particle virtual levels %J Doklady Akademii Nauk %D 1982 %P 784-786 %V 267 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_267_4_a3/ %G ru %F DAN_1982_267_4_a3