Meromorphic functions with positive coefficients defined using convolution. Kumar, s.Sivaprasad; Ravichandran, V.; Taneja, H.C. — 2005 JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
On differential subordinations for a class of analytic functions defined by a linear operator. Ravichandran, V.; Silverman, Herb; Kumar, S.Sivaprasad; Subramanian, K.G. — 2004 International Journal of Mathematics and Mathematical Sciences