%0 Journal Article %A V. Oxman %A A. Sigler %A M. Stupel %T On the Invariance of Brocard Angles in the Interior and Exterior Pappus Triangles of any Given Triangle %J Journal for geometry and graphics %D 2017 %P 61-7 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JGG_2017_21_1_JGG_2017_21_1_a5/ %F JGG_2017_21_1_JGG_2017_21_1_a5