Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EUG_1991__28_a10, author = {N. Kassimatis}, title = {Bas and {Serre} {Theory} and {Nielsen} {Transformations} (a counterexample)}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma} }, pages = {99-102}, publisher = {mathdoc}, volume = {28}, year = {1991}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUG_1991__28_a10/} }
N. Kassimatis. Bas and Serre Theory and Nielsen Transformations (a counterexample). Ευκλείδης Γ , Tome 28 (1991), p. 99-102. http://geodesic.mathdoc.fr/item/EUG_1991__28_a10/