The European Physical Journal C
Volume 54 / No 3 (April 2008)
G. Dissertori, E. Dudas, J. Monroe, D.J. Schwarz and G. Zanderighi
We thank you and the Editorial Office for the editorial work during the submission and revision of the manuscripts. We are particularly grateful to the Referee for his/her valuable work which has contributed improving the scientific content of the manuscripts.