%0 Journal Article %A L. A. Khalfin %T Permissibility conditions for the distributions of unstable particle masses %J Doklady Akademii Nauk %D 1968 %P 584-586 %V 181 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_181_3_a20/ %G ru %F DAN_1968_181_3_a20