@article{DE_1986_22_6_a25,
     author = {M. Utepbergenov},
     title = {An elliptic system with regular degeneration},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1077--1079},
     publisher = {mathdoc},
     volume = {22},
     number = {6},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_6_a25/}
}