(NpERIODI^ESKIE (B((NSEZONNYE I GODI^NYE(B) (NIZMENENIQ W ORGANIZME GRYZUNOW(B, (NIH PRI^INY I POSLEDSTWIQ (B/s - (NkALABUHOW(B, (NnIKOLAJ iWANOWI^s ((NlENINGRAD (B: s (NnAUKA(B. (NlENINGR(B. (NOTD(B-(NNIE(B, s, 1969)
Keywords: (NgRYZUNY s -- (NsEZONNYE I SUTO^NYE IZMENENIQs