@article{CRMATH_2008__346_23-24_1289_0,
     author = {Bertrand, Fr\'ed\'eric},
     title = {Probl\`emes de construction de type polynomial {II} {\textendash} {Quelques} r\'esultats d'existence de plans sph\'eriques isovariants exacts},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1289--1293},
     publisher = {Elsevier},
     volume = {346},
     number = {23-24},
     year = {2008},
     doi = {10.1016/j.crma.2008.09.029},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2008.09.029/}
}