(N~TOBY VITX(B/s - (NkUMANI^KIN(B,(Na(B. (Ns(B.s (NaLEKSANDR sERGEEWI^s; (NkUMANI^KIN a(B. (Ns(B.s; (NkUPCOW n(B. (Ns(B.s; (NnIKOLAEW m(B. (Na(B.s ((Nm(B.s (NmOLODAQ GWARDIQs, 1987)