@article{IVM_1973_11_a0,
     author = {Yu. Sh. Abramov},
     title = {Some problems on the eigenvalues of the equation $Tu=\lambda Su$ with unbounded and nonsymmetric operators, and their applications},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--14},
     publisher = {mathdoc},
     number = {11},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1973_11_a0/}
}