@article{DE_1997_33_6_a20,
     author = {A. M. Il'in and T. Yu. Yalysheva},
     title = {An elliptic equation with a small parameter multiplying the highest derivatives that is degenerate on the boundary of the domain},
     journal = {Differencialʹnye uravneni\^a},
     pages = {847--848},
     publisher = {mathdoc},
     volume = {33},
     number = {6},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_6_a20/}
}