@article{1183493097,
author = {Morse, Marston},
title = {The critical points of functions and the calculus of variations in the large},
journal = {Bull. Amer. Math. Soc.},
volume = {35},
number = {6},
year = {1929},
pages = { 38-54},
language = {en},
url = {http://dml.mathdoc.fr/item/1183493097}
}
Morse, Marston. The critical points of functions and the calculus of variations in the large. Bull. Amer. Math. Soc., Tome 35 (1929) no. 6, pp. 38-54. http://gdmltest.u-ga.fr/item/1183493097/