R. Wittmann, COEFFICIENT INEQUALITIES FOR ANALYTIC-FUNCTIONS IN H-1, Mathematical proceedings of the Cambridge Philosophical Society, 120, 1996, pp. 331-337
Improving earlier result of Hardy and Little-wood[1] and McGehee, Pign
o and Smith[2] we show for analytic functions F(z) = Sigma(n=0)(infini
ty)a(n)z(n) on the unit disc that [GRAPHICS]