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@article{MZM_1980_28_1_a5, author = {A. A. Kuleshov}, title = {Estimates of a class of linear differentials of operators with constant complex coefficients}, journal = {Matemati\v{c}eskie zametki}, pages = {53--58}, publisher = {mathdoc}, volume = {28}, number = {1}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1980_28_1_a5/} }
A. A. Kuleshov. Estimates of a class of linear differentials of operators with constant complex coefficients. Matematičeskie zametki, Tome 28 (1980) no. 1, pp. 53-58. http://geodesic.mathdoc.fr/item/MZM_1980_28_1_a5/