Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1975__50_139605, author = {John N. Mather}, title = {Commutators of {Diffeomorphisms:} {II.}}, journal = {Commentarii mathematici Helvetici}, pages = {33--40}, publisher = {mathdoc}, volume = {50}, year = {1975}, zbl = {0299.58008}, url = {http://geodesic.mathdoc.fr/item/CMH_1975__50_139605/} }
John N. Mather. Commutators of Diffeomorphisms: II.. Commentarii mathematici Helvetici, Tome 50 (1975), pp. 33-40. http://geodesic.mathdoc.fr/item/CMH_1975__50_139605/