@article{DE_1995_31_5_a22,
     author = {R. S. Khairullin},
     title = {On the {Tricomi} problem for an equation of the second kind in the case of an arbitrary domain},
     journal = {Differencialʹnye uravneni\^a},
     pages = {894--895},
     publisher = {mathdoc},
     volume = {31},
     number = {5},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1995_31_5_a22/}
}