@article{CM_1988__65_2_155_0, author = {Robinson, E. Arthur}, title = {Non-abelian extensions have nonsimple spectrum}, journal = {Compositio Mathematica}, volume = {68}, year = {1988}, pages = {155-170}, mrnumber = {932641}, zbl = {0641.28011}, language = {en}, url = {http://dml.mathdoc.fr/item/CM_1988__65_2_155_0} }
Robinson, E. Arthur. Non-abelian extensions have nonsimple spectrum. Compositio Mathematica, Tome 68 (1988) pp. 155-170. http://gdmltest.u-ga.fr/item/CM_1988__65_2_155_0/
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