@article{BSMF_1975__103__433_0,
     author = {Burghelea, Dan and Schultz, Reinhard},
     title = {On the semisimple degree of symmetry},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {433--440},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {103},
     year = {1975},
     doi = {10.24033/bsmf.1810},
     mrnumber = {53 #1614},
     zbl = {0321.57025},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1810/}
}