Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1989__25_1-2_a9, author = {Kolibiar, Milan}, title = {Median groups}, journal = {Archivum mathematicum}, pages = {73--82}, publisher = {mathdoc}, volume = {25}, number = {1-2}, year = {1989}, mrnumber = {1189201}, zbl = {0713.20033}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1989__25_1-2_a9/} }
Kolibiar, Milan. Median groups. Archivum mathematicum, Tome 25 (1989) no. 1-2, pp. 73-82. http://geodesic.mathdoc.fr/item/ARM_1989__25_1-2_a9/