On a Mocanu type generalization of the Kaplan class K(α, β) of analytic functions K. S. Padmanabhan; R. Parvatham; S. Radha — 1988 Annales Polonici Mathematici
On a Ruscheweyh type generalization of the Pascu class of analytic functions. Parvatham, R.; Radha, S. — 1988 Publications de l'Institut Mathématique. Nouvelle Série