Voir la notice de l'article provenant de la source Journal.fi
@article{AFM_1998_23_2_a10, author = {Kurt Strebel}, title = {Point shift differentials and extremal quasiconformal mappings}, journal = {Annales Fennici Mathematici}, pages = {475--494}, publisher = {mathdoc}, volume = {23}, number = {2}, year = {1998}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AFM_1998_23_2_a10/} }
Kurt Strebel. Point shift differentials and extremal quasiconformal mappings. Annales Fennici Mathematici, Tome 23 (1998) no. 2, pp. 475-494. http://geodesic.mathdoc.fr/item/AFM_1998_23_2_a10/