Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1889__34_157449, author = {B\"acklund}, title = {Zur {Wellentheorie} gasartiger {Mittel}}, journal = {Mathematische Annalen}, pages = {371--446}, publisher = {mathdoc}, volume = {34}, year = {1889}, zbl = {21.1192.01}, url = {http://geodesic.mathdoc.fr/item/MAN_1889__34_157449/} }
Bäcklund. Zur Wellentheorie gasartiger Mittel. Mathematische Annalen, Tome 34 (1889), pp. 371-446. http://geodesic.mathdoc.fr/item/MAN_1889__34_157449/