(NaL@MINATNYE I SULXFOAL@MINATNYE CEMENTYs - (NkUZNECOWA(B,(Nt(B. (Nw(B.s (NtAMARA wASILXEWNAs ((Nm(B.s (NsTROJIZDATs, 1986)
Keywords: (NcEMENT BYSTROTWERDE@]IJs; (NkALXCIJ(B, (NAL@MINATYs -- (NwLIQNIE NA SWOJSTWA CENTAs