(NmALYE WY^ISLITELXNYE MA[INYs (NKRATKOE SPRAWO^NOE RUKOWODSTWOs - (NhRENOW(B,(Nl(B. (Ns(B.s (NlEONID sERGEEWI^s ((Nm(B.s (NgOSTEHTEORIZDATs, 1957)