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@article{DAN_1961_137_5_a15, author = {A. I. Sirota}, title = {Simple subgroups of simply connected real simple {Lie} groups}, journal = {Doklady Akademii Nauk}, pages = {1063--1066}, publisher = {mathdoc}, volume = {137}, number = {5}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_5_a15/} }
A. I. Sirota. Simple subgroups of simply connected real simple Lie groups. Doklady Akademii Nauk, Tome 137 (1961) no. 5, pp. 1063-1066. http://geodesic.mathdoc.fr/item/DAN_1961_137_5_a15/