Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1977__156_172584, author = {Francesco Mercuri}, title = {The {Critical} {Points} {Theory} for the {Closed} {Geodesics} {Problem.}}, journal = {Mathematische Zeitschrift}, pages = {231--246}, publisher = {mathdoc}, volume = {156}, year = {1977}, zbl = {0344.58013}, url = {http://geodesic.mathdoc.fr/item/MZ_1977__156_172584/} }
Francesco Mercuri. The Critical Points Theory for the Closed Geodesics Problem.. Mathematische Zeitschrift, Tome 156 (1977), pp. 231-246. http://geodesic.mathdoc.fr/item/MZ_1977__156_172584/