@article{GDZPPN002097117,
title = {Geodesics and Totally Convex Sets on Surfaces.},
journal = {Inventiones mathematicae},
volume = {64},
year = {1981},
pages = {507-518},
zbl = {0443.53034},
url = {http://dml.mathdoc.fr/item/GDZPPN002097117}
}
Bangert, Victor. Geodesics and Totally Convex Sets on Surfaces.. Inventiones mathematicae, Tome 64 (1981) pp. 507-518. http://gdmltest.u-ga.fr/item/GDZPPN002097117/