%0 Journal Article %A V. A. Lyubishkin %A I. D. Tsopanov %T New trace formulas for operators with a discrete spectrum %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1987 %P 22-25 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1987_6_a3/ %G ru %F VMUMM_1987_6_a3