(NnAUKA I OB]ESTWO (B:s (NsTATXI I RE^I (B/s - (NsEMENOW(B, (NnIKOLAJ nIKOLAEWI^s; (NaKADEMIQ NAUK sssrs ((NmOSKWA (B:s (NnAUKA(B,s, 1981)
Keywords: (NnAUKAs