@article{GDZPPN002442868,
title = {On the geodesics flow of tori without conjugate points.},
journal = {Mathematische Zeitschrift},
volume = {217},
year = {1994},
pages = {209-216},
zbl = {0807.53039},
url = {http://dml.mathdoc.fr/item/GDZPPN002442868}
}
Heber, Jens. On the geodesics flow of tori without conjugate points.. Mathematische Zeitschrift, Tome 217 (1994) pp. 209-216. http://gdmltest.u-ga.fr/item/GDZPPN002442868/