@article{04032032, title = {New classification of analytic functions with negative coefficients.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {11}, year = {1988}, pages = {55-70}, doi = {10.1155/S0161171288000109}, zbl = {0634.30016}, language = {en}, url = {http://dml.mathdoc.fr/item/04032032} }
Owa, Shigeyoshi; Obradović, Milutin. New classification of analytic functions with negative coefficients.. International Journal of Mathematics and Mathematical Sciences, Tome 11 (1988) pp. 55-70. doi : 10.1155/S0161171288000109. http://gdmltest.u-ga.fr/item/04032032/