@article{02218518,
title = {Certain inequalities concerning bicentric quadrilaterals, hexagons and octagons.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {6},
year = {2005},
zbl = {1081.51013},
language = {en},
url = {http://dml.mathdoc.fr/item/02218518}
}
Radić, Mirko. Certain inequalities concerning bicentric quadrilaterals, hexagons and octagons.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 6 (2005) . http://gdmltest.u-ga.fr/item/02218518/