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@article{DAN_1968_178_2_a0, author = {A.-K. Yu. Abazaliev}, title = {Characteristic coefficients of two-dimensional distributions and their applications}, journal = {Doklady Akademii Nauk}, pages = {263--266}, publisher = {mathdoc}, volume = {178}, number = {2}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1968_178_2_a0/} }
A.-K. Yu. Abazaliev. Characteristic coefficients of two-dimensional distributions and their applications. Doklady Akademii Nauk, Tome 178 (1968) no. 2, pp. 263-266. http://geodesic.mathdoc.fr/item/DAN_1968_178_2_a0/