@article{00778320, title = {On the area sum of a convex polygon and its polar reciprocal.}, journal = {Mathematica Pannonica}, volume = {6}, year = {1995}, pages = {77-84}, zbl = {0839.52001}, language = {en}, url = {http://dml.mathdoc.fr/item/00778320} }
Florian, August. On the area sum of a convex polygon and its polar reciprocal.. Mathematica Pannonica, Tome 6 (1995) pp. 77-84. http://gdmltest.u-ga.fr/item/00778320/