@article{DE_1996_32_2_a7,
     author = {V. P. Serebryakov},
     title = {Conditions for the existence of selfadjoint extensions of a third-order differential operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {201--204},
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1996_32_2_a7/}
}