(NsPEKTRALXNAQ TEORIQ OPERATOROW I EE PRILOVENIQ (B/s - (NmAKSUDOW(B, (NfARAMAZ gQZANFAROWI^s ((NbAKU (B:s (N|LM(B,s, 1984)
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Keywords: (NoPERATORY (B[(NMAT(B.] - (NsPEKTRALXNAQ TEORIQs