%0 Journal Article %A Stanislav Lukáč %T Investigation and proof of a property of interior angle bisector in a triangle %J The Teaching of Mathematics %D 2010 %P 35 %V XIII %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM2_2010_XIII_1_a2/ %G en %F TM2_2010_XIII_1_a2