(N|LEMENTARNAQ MATEMATIKA (B:s (NrE[ENIE ZADA^ (B/s - (NaLEKSEEW(B, (NwALERIJ mIHAJLOWI^s ((NkIEW (B:s (NwI]A [K(B.,s, 1983)
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Keywords: (NmATEMATIKA (B- (NzADA^I (B- (NrE[ENIEs