Change Log

Major update published on 11 May 2011

Global description:

Completely revised and updated previous version. Significantly extended Sections 2.4, 3, 4.1, 4.2, 5, and 7. Introduced new Section 6. Eight new figures have been added. The number of references increased from 434 to 702.

Previous version:

http://www.livingreviews.org/lrr-2005-12