Open Access
Editorial
Editorial p. 327
Published online: 24 November 2006
DOI: 10.1140/epjc/s10052-006-0145-y
Editors-in-Chief
E. Dudas, M. Elsing, F. Forti, D.J. Schwarz, J.K. Vogel and G. Zanderighi
We are grateful to the Editor, to the Referee for careful reading of the manuscript, for the interesting and useful remarks, which allow us to improve the text and clarify some of the results.