@article{GDZPPN002426293, title = {New Inequalities from Old Planes.}, journal = {Mathematische Zeitschrift}, volume = {180}, year = {1982}, pages = {19-40}, zbl = {0498.30024}, url = {http://dml.mathdoc.fr/item/GDZPPN002426293} }
Schober, Glenn; Kirwan, William E. New Inequalities from Old Planes.. Mathematische Zeitschrift, Tome 180 (1982) pp. 19-40. http://gdmltest.u-ga.fr/item/GDZPPN002426293/