Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1882__19_156996, author = {B\"acklund}, title = {Zur {Theorie} der {Fl\"achentransformationen.}}, journal = {Mathematische Annalen}, pages = {387--422}, publisher = {mathdoc}, volume = {19}, year = {1882}, zbl = {13.0296.01}, url = {http://geodesic.mathdoc.fr/item/MAN_1882__19_156996/} }
Bäcklund. Zur Theorie der Flächentransformationen.. Mathematische Annalen, Tome 19 (1882), pp. 387-422. http://geodesic.mathdoc.fr/item/MAN_1882__19_156996/