TY  - JOUR
AU  - C.-S. Barbat 
TI  - A Property of Liouville Surfaces and Manifolds
JO  - Journal for geometry and graphics
PY  - 2015
SP  - 179
EP  - 188
VL  - 19
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2015_19_2_JGG_2015_19_2_a1/
ID  - JGG_2015_19_2_JGG_2015_19_2_a1
ER  -