(NaWTOMORFNYE FORMY I KLEJNOWY GRUPPY (B:s (NpER(B. (NS ANGL(B. /s - (NkRA(B, (NiRWINs; (NmARGULIS(B, (Ng(B.(Na(B.s ((NmOSKWA (B:s (NmIR(B,s, 1975)
Keywords: (NmATEMATIKAs