@article{DAN_1990_315_6_a0,
     author = {K. Kh. Boimatov},
     title = {On the asymptotics of the eigenvalues of nonselfadjoint elliptic},
     journal = {Doklady Akademii Nauk},
     pages = {1289--1293},
     publisher = {mathdoc},
     volume = {315},
     number = {6},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_315_6_a0/}
}