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@article{DAN_1990_312_1_a6, author = {V. A. Koibaev}, title = {Subgroups of the group $GL(2,\mathbf{Q})$ that contain a nonsplittable maximal torus}, journal = {Doklady Akademii Nauk}, pages = {36--38}, publisher = {mathdoc}, volume = {312}, number = {1}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_312_1_a6/} }
V. A. Koibaev. Subgroups of the group $GL(2,\mathbf{Q})$ that contain a nonsplittable maximal torus. Doklady Akademii Nauk, Tome 312 (1990) no. 1, pp. 36-38. http://geodesic.mathdoc.fr/item/DAN_1990_312_1_a6/