Voir la notice de l'article provenant de la source Institute of Mathematics Polish Academy of Sciences
@article{10_4064_cm_38_1_37_38, author = {E. Grzegorek}, title = {A solution of a problem of {B.} {Rotman}}, journal = {Colloquium Mathematicum}, pages = {37--38}, publisher = {mathdoc}, volume = {38}, number = {1}, year = {1977}, doi = {10.4064/cm-38-1-37-38}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-38-1-37-38/} }
E. Grzegorek. A solution of a problem of B. Rotman. Colloquium Mathematicum, Tome 38 (1977) no. 1, pp. 37-38. doi : 10.4064/cm-38-1-37-38. http://geodesic.mathdoc.fr/articles/10.4064/cm-38-1-37-38/
Cité par Sources :