%0 Journal Article
%A Emilija Nešović
%A Miroslava Petrović-Torgašev
%T Some trigonometric relations in the Lorentzian plane
%J Kragujevac Journal of Mathematics
%D 2003
%P 219 - 225
%V 25
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/KJM_2003_25_1_a21/
%F KJM_2003_25_1_a21