@article{TM_1985_172_a2,
     author = {K. Kh. Boimatov},
     title = {Two-sided estimates of the eigenvalues of the {Dirichlet} problem for a~class of degenerate elliptic differential operators},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {16--28},
     publisher = {mathdoc},
     volume = {172},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1985_172_a2/}
}