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@article{DE_1989_25_3_a27, author = {T. L. Surin}, title = {Exponents of regular {Lappo--Danilevski{\v\i}} systems}, journal = {Differencialʹnye uravneni\^a}, pages = {543--545}, publisher = {mathdoc}, volume = {25}, number = {3}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1989_25_3_a27/} }
T. L. Surin. Exponents of regular Lappo--Danilevski{\v\i} systems. Differencialʹnye uravneniâ, Tome 25 (1989) no. 3, pp. 543-545. http://geodesic.mathdoc.fr/item/DE_1989_25_3_a27/