TY  - JOUR
AU  - J. M. Habeb
AU  - M. Hajja 
TI  - A Method for Establishing Trigonometric Inequalities Involving the Cotangents of the Angles of a Triangle
JO  - Journal for geometry and graphics
PY  - 2008
SP  - 11
EP  - 21
VL  - 12
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2008_12_1_JGG_2008_12_1_a1/
ID  - JGG_2008_12_1_JGG_2008_12_1_a1
ER  -