@article{GDZPPN00208211X, title = {Some inequalities for the triangle.}, journal = {Elemente der Mathematik}, volume = {44}, year = {1989}, pages = {1-15}, zbl = {0714.51011}, url = {http://dml.mathdoc.fr/item/GDZPPN00208211X} }
Corach, G.; McGowan, J.; Porta, H. Some inequalities for the triangle.. Elemente der Mathematik, Tome 44 (1989) pp. 1-15. http://gdmltest.u-ga.fr/item/GDZPPN00208211X/