(NrEDKOZEMELXNYE \LEMENTY (B/s - (NtRIFONOW(B, (NdMITRIJ nIKOLAEWI^s; (NsKLQRENKO(B, (N`(B.(Ns(B.s; (NaKADEMIQ nAUK sssrs ((NmOSKWA (B:s (NiZD(B. (Nan sssr(B,s, 1960)
Keywords: (NnEORGANI^ESKAQ HIMIQs