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@article{MM2_1992__76_1_155753, author = {Isidro Nieto}, title = {The {Normalizer} of the level {(2,2)-Heisenberg} {Group.}}, journal = {Manuscripta mathematica}, pages = {257--268}, publisher = {mathdoc}, volume = {76}, number = {1}, year = {1992}, zbl = {0778.20019}, url = {http://geodesic.mathdoc.fr/item/MM2_1992__76_1_155753/} }
Isidro Nieto. The Normalizer of the level (2,2)-Heisenberg Group.. Manuscripta mathematica, Tome 76 (1992) no. 1, pp. 257-268. http://geodesic.mathdoc.fr/item/MM2_1992__76_1_155753/