@article{DE_1977_13_1_a17,
     author = {S. V. Rutkauskas},
     title = {Complete families of solutions of systems of degenerate elliptic equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {126--132},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1977_13_1_a17/}
}