(NpETR nIKOLAEWI^ lEBEDEW (B:s 1866-1912 - (NsERD@KOW(B, (NaNATOLIJ rOMANOWI^s; (NaKADEMIQ NAUK sssrs ((NmOSKWA (B:s (NnAUKA(B,s, 1978)
Keywords: (NlEBEDEW(B, (NpETR nIKOLAEWI^(B,s -- 1866-1912; (NfIZIKAs