@article{DAN_1985_285_6_a8,
     author = {S. Z. Levendorskii},
     title = {Asymptotic behavior of the spectrum of linear pseudodifferential pencils in the degenerate case},
     journal = {Doklady Akademii Nauk},
     pages = {1321--1324},
     publisher = {mathdoc},
     volume = {285},
     number = {6},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1985_285_6_a8/}
}