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@article{FAA_1969_3_2_a1, author = {I. B. Brodskii}, title = {On orbits of unipotent groups}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {19--23}, publisher = {mathdoc}, volume = {3}, number = {2}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1969_3_2_a1/} }
I. B. Brodskii. On orbits of unipotent groups. Funkcionalʹnyj analiz i ego priloženiâ, Tome 3 (1969) no. 2, pp. 19-23. http://geodesic.mathdoc.fr/item/FAA_1969_3_2_a1/