(NpROBLEMA KLETO^NOJ PRONICAEMOSTI (B/ s - (NtRO[IN(B, (Na(B. (Ns(B.s ((NmOSKWA (B; s (NlENINGRAD (B: s (NiZD(B-(NWO aKAD(B. (NNAUK sssr(B, s, 1956)
(NbIBLIOGR(B.: (NS(B. 380-435s
Keywords: (NkLETKA (B((NBIOL(B.) s -- (NpRONICAEMOSTXs