@article{DE_1973_9_2_a16,
     author = {A. Yanushauskas},
     title = {The completeness of special families of solutions of degenerate equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {343--348},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_2_a16/}
}