1. C.E. Shannon, Bell Syst. Tech. J. 27(379–423), 623–656 (1948)
2. T.M. Cover, J.A. Thomas, Elements of Information Theory, 2nd edn. (Wiley-Interscience, New York, 2006)
3. R. Landauer, Science 272, 1914 (1996)
4. S. Lloyd, Nature 406, 1047 (2000)
5. D.S. Lebedev, L.B. Levitin, Dokl. Akad. Nauk SSSR 149, 1299 (1963) [Sov. Phys. Dokl. 8, 377 (1963)]