@article{DE_1982_18_9_a13,
     author = {T. V. Chekmarev},
     title = {Formulas for solution of the {Goursat} problem for a linear system of partial differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1614--1622},
     publisher = {mathdoc},
     volume = {18},
     number = {9},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1982_18_9_a13/}
}