Open Access
Eur. Phys. J. Appl. Phys.
Volume 59, Number 1, July 2012
Article Number 10001
Number of page(s) 21
Section Review Article
Published online 03 August 2012

© The Author(s), 2012

Licence Creative Commons
This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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