@article{04210485,
title = {Linear combinations of regular functions of order alpha with negative coefficients.},
journal = {Publications de l'Institut Math\'ematique. Nouvelle S\'erie},
volume = {47(61)},
year = {1990},
pages = {61-67},
zbl = {0732.30011},
language = {en},
url = {http://dml.mathdoc.fr/item/04210485}
}
Aouf, M.K. Linear combinations of regular functions of order alpha with negative coefficients.. Publications de l'Institut Mathématique. Nouvelle Série, Tome 47(61) (1990) pp. 61-67. http://gdmltest.u-ga.fr/item/04210485/