@article{TSG_1994-1995__13__123_0, author = {Pierre-Alain Cherix}, title = {Generic result for the existence of a free semi-group}, journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie}, pages = {123--133}, publisher = {Institut Fourier}, address = {Grenoble}, volume = {13}, year = {1994-1995}, doi = {10.5802/tsg.156}, zbl = {0925.20070}, mrnumber = {1715961}, language = {en}, url = {https://proceedings.centre-mersenne.org/articles/10.5802/tsg.156/} }