@article{BSMF_2007__135_3_367_0, author = {Host, Bernard and Maass, Alejandro}, title = {Nilsyst\`emes d'ordre 2 et parall\'el\'epip\`edes}, journal = {Bulletin de la Soci\'et\'e Math\'ematique de France}, pages = {367--405}, publisher = {Soci\'et\'e math\'ematique de France}, volume = {135}, number = {3}, year = {2007}, doi = {10.24033/bsmf.2539}, mrnumber = {2430186}, zbl = {1217.37010}, language = {fr}, url = {http://archive.numdam.org/articles/10.24033/bsmf.2539/} }