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@article{MZ_1981__176_183646, author = {Wilhelm Klingenberg}, title = {On the {Existence} of {Closed} {Geodesics} on {Spherical} {Manifolds.}}, journal = {Mathematische Zeitschrift}, pages = {319--326}, publisher = {mathdoc}, volume = {176}, year = {1981}, zbl = {0469.53042}, url = {http://geodesic.mathdoc.fr/item/MZ_1981__176_183646/} }
Wilhelm Klingenberg. On the Existence of Closed Geodesics on Spherical Manifolds.. Mathematische Zeitschrift, Tome 176 (1981), pp. 319-326. http://geodesic.mathdoc.fr/item/MZ_1981__176_183646/