(NoBRABOTKA PRIRODNOGO KAMNQ ALMAZNYM DISKOWYM INSTRUMENTOM (B/s - (NaLEKSANDROW(B, (NwIKTOR aDAMOWI^s; (NiNSTITUT SWERHTWERDYH MATERIALOW aKADEMII NAUK ussrs ((NkIEW (B:s (NnAUK(B. (NDUMKA(B,s, 1979)
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Keywords: (NoBRABOTKA PRIRODNOGO KAMNQs