@article{02107625,
title = {An integral approximation in three variables.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {4},
year = {2003},
zbl = {1051.26019},
language = {en},
url = {http://dml.mathdoc.fr/item/02107625}
}
Sofo, A. An integral approximation in three variables.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 4 (2003) . http://gdmltest.u-ga.fr/item/02107625/