%0 Journal Article %A T. V. Chekmarev %T Formulas for the solution of the Tricomi problem for the Lavrent'ev--Bitsadze system %J Differencialʹnye uravneniâ %D 1994 %P 1828-1829 %V 30 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1994_30_10_a23/ %G ru %F DE_1994_30_10_a23