@article{2082, author = {Weinstein, A.}, title = {Les vibrations et le calcul des variations}, journal = {Portugaliae mathematica}, volume = {2}, year = {1941}, pages = {36-55}, zbl = {0024.20402}, mrnumber = {0003910}, language = {fr}, url = {http://dml.mathdoc.fr/item/2082} }
Weinstein, A. Les vibrations et le calcul des variations. Portugaliae mathematica, Tome 2 (1941) pp. 36-55. http://gdmltest.u-ga.fr/item/2082/