(NsPEKTROSKOPIQ TWERDOGO TELA (B/s - (NfRI[(B, (NsERGEJ |DUARDOWI^s; (NaKADEMIQ NAUK sssrs ((NlENINGRAD (B:s (NnAUKA(B.s)
(NsB(B. 4 (1969, 280 (NS(B., (NIL(B.)s
Keywords: (NfIZIKA (B- (NsPEKTROSKOPIQ KRISTALLOW (B- (NsBORNIKIs