@base . "Russia (Federation)" . a ; "1061-9208" ; . a ; . a . a , , ; , , ; "Russian journal of mathematical physics." ; ; ; ; "1061-9208" ; ; ; "1061-9208" ; ; "1061-9208" ; "Russian journal of mathematical physics" , "Russian journal of mathematical physics." ; . . a , ; "Russian journal of mathematical physics" . a ; "1061-9208" ; . a ; ; "20151214162500.0"^^ ; ; .