Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1962__146_160934, author = {K.-T. CHEN}, title = {Decomposition of {Differential} {Equations.}}, journal = {Mathematische Annalen}, pages = {263--278}, publisher = {mathdoc}, volume = {146}, year = {1962}, zbl = {0166.02802}, url = {http://geodesic.mathdoc.fr/item/MAN_1962__146_160934/} }
K.-T. CHEN. Decomposition of Differential Equations.. Mathematische Annalen, Tome 146 (1962), pp. 263-278. http://geodesic.mathdoc.fr/item/MAN_1962__146_160934/