@article{GDZPPN002290243,
title = {Decomposition of Differential Equations.},
journal = {Mathematische Annalen},
volume = {146},
year = {1962},
pages = {263-278},
zbl = {0166.02802},
url = {http://dml.mathdoc.fr/item/GDZPPN002290243}
}
CHEN, K.-T. Decomposition of Differential Equations.. Mathematische Annalen, Tome 146 (1962) pp. 263-278. http://gdmltest.u-ga.fr/item/GDZPPN002290243/