Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1977__13_1_a6, author = {\v{S}eve\v{c}kov\'a, Jitka}, title = {The five-group theorem}, journal = {Archivum mathematicum}, pages = {51--54}, publisher = {mathdoc}, volume = {13}, number = {1}, year = {1977}, mrnumber = {0463085}, zbl = {0371.20035}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1977__13_1_a6/} }
Ševečková, Jitka. The five-group theorem. Archivum mathematicum, Tome 13 (1977) no. 1, pp. 51-54. http://geodesic.mathdoc.fr/item/ARM_1977__13_1_a6/