@article{JMPA_1844_1_9__336_0,
     author = {Besge},
     title = {Sur l'\'equation $\frac{d^2u}{dx^2}=\frac{\mathrm{A}u}{\left(a+2bx+cx^2\right)^2}$},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {336--336},
     publisher = {Gauthier-Villars},
     volume = {1e s{\'e}rie, 9},
     year = {1844},
     language = {fr},
     url = {http://archive.numdam.org/item/JMPA_1844_1_9__336_0/}
}