Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1992__33_1_a14, author = {Baars, Jan}, title = {Equivalence of certain free topological groups}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {125--130}, publisher = {mathdoc}, volume = {33}, number = {1}, year = {1992}, mrnumber = {1173754}, zbl = {0759.54022}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1992__33_1_a14/} }
Baars, Jan. Equivalence of certain free topological groups. Commentationes Mathematicae Universitatis Carolinae, Tome 33 (1992) no. 1, pp. 125-130. http://geodesic.mathdoc.fr/item/CMUC_1992__33_1_a14/