Open Access
Editorial
Editorial p. 393
Published online: 10 January 2007
DOI: 10.1140/epjc/s10052-006-0200-8
Editors-in-Chief
E. Dudas, M. Elsing, F. Forti, J. Monroe, D.J. Schwarz and G. Zanderighi
We especially appreciate the reviewer's patience and many helpful suggestions.