References
- Inequalities, Thrid Printing E.F. Beckenbach;R. Bellman
- Pacific J. Math. v.143 no.1 Note on the inequality of the arithmetic and geometric means H.Z. Chuan
- Inequalities G.H. Hardy;J.E. Littlewood;G. Polya
- Bull. Austral. Math. Soc. v.51 Extension of Holder's inequality E.G. Kwon
- Real and Complex Analysis(2nd ed.) W. Rudin
- Convex functions A.W. Roberts;D.E. Varberg