The European Physical Journal C
Volume 21 / No 2 (June II 2001)
G. Dissertori, J. Monroe, D. J. Schwarz, K. Skenderis and D. Zeppenfeld
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.