@article{DE_1991_27_7_a14,
     author = {E. I. Moiseev},
     title = {Representation of the solution of the {Tricomi} problem in the form of a biorthogonal series},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1229--1237},
     publisher = {mathdoc},
     volume = {27},
     number = {7},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_7_a14/}
}