@article{DAN_1990_311_6_a8,
     author = {A. V. Pesterev},
     title = {Some properties of spectral-parameter-dependent meromorphic},
     journal = {Doklady Akademii Nauk},
     pages = {1317--1320},
     publisher = {mathdoc},
     volume = {311},
     number = {6},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_311_6_a8/}
}