(NtEORETI^ESKAQ MEHANIKA (B:s (Nu^EBNOE POSOBIE (B/s - (NsOKOLOW(B, (Nw(B.(Nm(B.s ((NsWERDLOWSK (B:s (Nupi(B,s, 1976)
(N~(B. 3 (1976, 193 (NS(B.) :s (NdINAMIKAs
Keywords: (NsTATIKAs; (NtEORETI^ESKAQ MEHANIKAs