(NoSNOWY U^ENIQ O ^ISLE W (BXVIII (NWEKE (B:s (NpOSOBIE DLQ U^ITELEJ (B/s - (NmOLOD[IJ(B, (Nw(B.(Nn(B.s; (NkAPUSTINA(B, (Nw(B.(Ns(B.s ((NmOSKWA (B:s (Nu^PEDGIZ(B,s, 1953)
Keywords: (NmATEMATIKAs