@article{05313212,
title = {On harmonic functions defined by derivative operator.},
journal = {Journal of Inequalities and Applications [electronic only]},
volume = {2008},
year = {2008},
doi = {10.1155/2008/263413},
zbl = {1149.31001},
language = {en},
url = {http://dml.mathdoc.fr/item/05313212}
}
Al-Shaqsi, K.; Darus, M. On harmonic functions defined by derivative operator.. Journal of Inequalities and Applications [electronic only], Tome 2008 (2008) . doi : 10.1155/2008/263413. http://gdmltest.u-ga.fr/item/05313212/