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@article{JRAM_1991__417_153323, author = {N. Ghoussoub}, title = {Location, multiplicity and {Morse} indices of min-max critical points.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {27--76}, publisher = {mathdoc}, volume = {417}, year = {1991}, zbl = {0736.58011}, url = {http://geodesic.mathdoc.fr/item/JRAM_1991__417_153323/} }
N. Ghoussoub. Location, multiplicity and Morse indices of min-max critical points.. Journal für die reine und angewandte Mathematik, Tome 417 (1991), pp. 27-76. http://geodesic.mathdoc.fr/item/JRAM_1991__417_153323/