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@article{DE_1970_6_9_a19, author = {S. S. Belyavsky}, title = {Construction of adjoint differential systems in the analytic case}, journal = {Differencialʹnye uravneni\^a}, pages = {1716--1717}, publisher = {mathdoc}, volume = {6}, number = {9}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1970_6_9_a19/} }
S. S. Belyavsky. Construction of adjoint differential systems in the analytic case. Differencialʹnye uravneniâ, Tome 6 (1970) no. 9, pp. 1716-1717. http://geodesic.mathdoc.fr/item/DE_1970_6_9_a19/