@article{GDZPPN002251922, title = {Zur Wellentheorie gasartiger Mittel}, journal = {Mathematische Annalen}, volume = {34}, year = {1889}, pages = {371-446}, zbl = {21.1192.01}, url = {http://dml.mathdoc.fr/item/GDZPPN002251922} }
Bäcklund. Zur Wellentheorie gasartiger Mittel. Mathematische Annalen, Tome 34 (1889) pp. 371-446. http://gdmltest.u-ga.fr/item/GDZPPN002251922/