The European Physical Journal C - Particles and Fields
Volume 15 / No 1-4 (March 2000)
Review of Particle Physics
G. Dissertori, J. Monroe, D. J. Schwarz, K. Skenderis 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.