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@article{DE_1973_9_4_a23, author = {V. I. Pa\v{s}kovskii}, title = {Connected partial differential operators and boundary value problems}, journal = {Differencialʹnye uravneni\^a}, pages = {757--760}, publisher = {mathdoc}, volume = {9}, number = {4}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_4_a23/} }
V. I. Paškovskii. Connected partial differential operators and boundary value problems. Differencialʹnye uravneniâ, Tome 9 (1973) no. 4, pp. 757-760. http://geodesic.mathdoc.fr/item/DE_1973_9_4_a23/