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@article{DAN_1991_318_4_a15, author = {S. R. Umarov}, title = {On the well-posedness of systems of pseudodifferential equations}, journal = {Doklady Akademii Nauk}, pages = {835--839}, publisher = {mathdoc}, volume = {318}, number = {4}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_318_4_a15/} }
S. R. Umarov. On the well-posedness of systems of pseudodifferential equations. Doklady Akademii Nauk, Tome 318 (1991) no. 4, pp. 835-839. http://geodesic.mathdoc.fr/item/DAN_1991_318_4_a15/