@article{JMPA_1846_1_11__458_0,
     author = {Liouville, J.},
     title = {Sur une transformation de l'\'equation $\sin \theta\frac{d.\sin \theta\frac{d\Phi}{d\theta}}{d\theta}+\frac{d^2\Phi}{d\varpi^2}+n\left(n+1\right)\sin ^2\theta.\Phi=\mathrm{o}$},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {458--461},
     publisher = {Gauthier-Villars},
     volume = {1e s{\'e}rie, 11},
     year = {1846},
     language = {fr},
     url = {http://archive.numdam.org/item/JMPA_1846_1_11__458_0/}
}