(NtEHNI^ESKAQ MEHANIKA(B. (NdETALI MA[INs (NU^EBNIK DLQ STUDENTOW SRED(B. (NSPEC(B. (NU^EB(B. (NZAWEDENIJs - (NfROLOW(B,(Nm(B. (Ni(B.s (NmIHAIL iGNATXEWI^s ((Nm(B.s (NwYS[AQ [KOLAs, 1990)