@article{DAN_1992_322_1_a0,
     author = {K. Kh. Boimatov},
     title = {Spectral asymptotics of $m$-sectorial operators},
     journal = {Doklady Akademii Nauk},
     pages = {11--15},
     publisher = {mathdoc},
     volume = {322},
     number = {1},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_322_1_a0/}
}