@article{GDZPPN002243784,
title = {On the theory of Partial Differential Equations},
journal = {Mathematische Annalen},
volume = {12},
year = {1877},
pages = {194-198},
zbl = {09.0259.01},
url = {http://dml.mathdoc.fr/item/GDZPPN002243784}
}
Cayley. On the theory of Partial Differential Equations. Mathematische Annalen, Tome 12 (1877) pp. 194-198. http://gdmltest.u-ga.fr/item/GDZPPN002243784/