@article{DE_1999_35_10_a8,
     author = {N. A. Lukashevich},
     title = {On third-order linear equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1366--1371},
     publisher = {mathdoc},
     volume = {35},
     number = {10},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_10_a8/}
}