(NvIWAQ MATEMATIKA (B:s (NmATEMATI^ESKIE RASSKAZY I GOLOWOLOMKI (B/s - (NpERELXMAN(B, (NqKOW iSIDOROWI^s; (NbOLTQNSKIJ(B, (Nw(B.(Ng(B.s ((NmOSKWA (B:s (NnAUKA(B. (NgL(B. (NRED(B. (NFIZ(B.-(NMAT(B. (NLIT(B.,s, 1978)
Keywords: (NmATEMATIKAs