TY  - JOUR
AU  - Emilija Nešović
TI  - Hyperbolic angle function in the Lorentzian plane
JO  - Kragujevac Journal of Mathematics
PY  - 2005
SP  - 139 
EP  -  144
VL  - 28
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KJM_2005_28_1_a9/
ID  - KJM_2005_28_1_a9
ER  -