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@article{IM_1982__69_142959, author = {A. Freire and R. Mane}, title = {On the {Entropy} of the {Geodesic} {Flow} in {Manifolds} {Without} {Conjugate} {Points.}}, journal = {Inventiones mathematicae}, pages = {375--392}, publisher = {mathdoc}, volume = {69}, year = {1982}, zbl = {0476.58019}, url = {http://geodesic.mathdoc.fr/item/IM_1982__69_142959/} }
A. Freire; R. Mane. On the Entropy of the Geodesic Flow in Manifolds Without Conjugate Points.. Inventiones mathematicae, Tome 69 (1982), pp. 375-392. http://geodesic.mathdoc.fr/item/IM_1982__69_142959/