(NkALENDARNAQ DALX WEKOWs - (NrOSSOWSKAQ(B, (NwERA aLEKSANDROWNAs ((NlENINGRAD (B;s (NmOSKWAs (Nontis, 1936)
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Keywords: (NkALENDARI (B- (NaSTRONOMI^ESKOE OBOSNOWANIEs