(NtWOJ S^ASTLIWYJ KAMENXs (NgEMMATERAPIQ (B- (NLE^ENIE PRI POMO]I DRAGOCENNYH I POLUDRAGOCENNYH KAMNEJs - (NkRIWENKO(B,(Nw(B. (Nw(B.s (NwALERIQ wSEWOLODOWNAs; (NpOTEBNQ(B,(Ng(B. (Np(B.s (NgRIGORIJ pLATONOWI^s; (NhMELEWSKAQ(B,(Na(B. (Nw(B.s (NaLEKSANDRA wASILXEWNAs ((Nm(B.s (NzDOROW(B'(NQs, 1995)