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@article{DAN_1985_283_3_a3, author = {A. R. Its and V. V. Sukhanov}, title = {The matrix {Riemann} problem on a system of rays and inverse}, journal = {Doklady Akademii Nauk}, pages = {534--538}, publisher = {mathdoc}, volume = {283}, number = {3}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_283_3_a3/} }
A. R. Its; V. V. Sukhanov. The matrix Riemann problem on a system of rays and inverse. Doklady Akademii Nauk, Tome 283 (1985) no. 3, pp. 534-538. http://geodesic.mathdoc.fr/item/DAN_1985_283_3_a3/