@article{1214431958, author = {Uhlenbeck, K.}, title = {The Morse index theorem in Hilbert space}, journal = {J. Differential Geom.}, volume = {8}, number = {3}, year = {1973}, pages = { 555-564}, language = {en}, url = {http://dml.mathdoc.fr/item/1214431958} }
Uhlenbeck, K. The Morse index theorem in Hilbert space. J. Differential Geom., Tome 8 (1973) no. 3, pp. 555-564. http://gdmltest.u-ga.fr/item/1214431958/