Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1964__84_170265, author = {Hans Hornich}, title = {Huygenssche {Differentialgleichungen} im {Rn.}}, journal = {Mathematische Zeitschrift}, pages = {268--270}, publisher = {mathdoc}, volume = {84}, year = {1964}, zbl = {0144.13902}, url = {http://geodesic.mathdoc.fr/item/MZ_1964__84_170265/} }
Hans Hornich. Huygenssche Differentialgleichungen im Rn.. Mathematische Zeitschrift, Tome 84 (1964), pp. 268-270. http://geodesic.mathdoc.fr/item/MZ_1964__84_170265/