TY  - JOUR
AU  - Emilija Nešović
AU  - Miroslava Petrović-Torgašev
TI  - Some trigonometric relations in the Lorentzian plane
JO  - Kragujevac Journal of Mathematics
PY  - 2003
SP  - 219 
VL  - 25
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KJM_2003_25_a21/
LA  - en
ID  - KJM_2003_25_a21
ER  -