(N|LEMENTY WY^ISLITELXNOJ MATEMATIKE (B/s - (NvABIN(B, (Ni(B.s; (NnORKIN (B, (Ns(B.s ((NmOSKWA (B: s (NwYS[(B. (N[KOLA(B,s, 1960)
Keywords: (NmATEMATI^ESKIE WY^ISLENIQs