@article{INTO_2018_153_a5,
     author = {Kh. K. Ishkin and A. V. Rezbayev},
     title = {On the {Davies} {Formula} for the {Distribution} of {Eigenvalues} of a {Non-Self-Adjoint} {Differential} {Operator}},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {84--93},
     publisher = {mathdoc},
     volume = {153},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2018_153_a5/}
}