@article{GDZPPN002324318, title = {Manifolds with Geodesic Chords of Constant Length.}, journal = {Mathematische Annalen}, volume = {264}, year = {1983}, pages = {273-282}, zbl = {0508.53055}, url = {http://dml.mathdoc.fr/item/GDZPPN002324318} }
Bangert, Victor. Manifolds with Geodesic Chords of Constant Length.. Mathematische Annalen, Tome 264 (1983) pp. 273-282. http://gdmltest.u-ga.fr/item/GDZPPN002324318/