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@article{JRAM_1980__315_152231, author = {Detlev Poguntke}, title = {Symmetry and nonsymmetry for a class of exponential {Lie} groups.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {127--138}, publisher = {mathdoc}, volume = {315}, year = {1980}, zbl = {0419.22014}, url = {http://geodesic.mathdoc.fr/item/JRAM_1980__315_152231/} }
Detlev Poguntke. Symmetry and nonsymmetry for a class of exponential Lie groups.. Journal für die reine und angewandte Mathematik, Tome 315 (1980), pp. 127-138. http://geodesic.mathdoc.fr/item/JRAM_1980__315_152231/