@article{DE_1992_28_9_a23,
     author = {G. P. Paskalev},
     title = {Investigation of a boundary value problem for ultraparabolic equations with constant coefficients by the variational method},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1640--1642},
     publisher = {mathdoc},
     volume = {28},
     number = {9},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1992_28_9_a23/}
}