(NtEHNOLOGIQ ROTACIONNOJ KOWKI I WALXCOWKIs (NU^EBNOE POSOBIE DLQ STUDENTOW ptus - (N{ESTAKOW(B,(Nn(B. (Na(B.s (NnIKOLAJ aLEKSANDROWI^s; (N{EW^ENKO(B,(Na(B. (Na(B.s (NaLEKSANDR aNDREEWI^s ((Nm(B.s (NwYS[AQ [KOLAs, 1988)