@article{DAN_1981_260_1_a3,
     author = {A. I. Karol'},
     title = {On the $\zeta$-function of a degenerate elliptic {Dirichlet} problem},
     journal = {Doklady Akademii Nauk},
     pages = {20--22},
     publisher = {mathdoc},
     volume = {260},
     number = {1},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_260_1_a3/}
}