S. Novaes. (2000)cite arxiv:hep-ph/0001283Comment: 101 pages, 14 figures, To be published in "Particle and Fields", Proceedings of the X J. A. Swieca Summer School (World Scientific, Singapore, 2000).
B. Andersson, S. Mohanty, and F. Soderberg. (2002)cite arxiv:hep-ph/0212122
Comment: Contribution to the proceedings of the XXXVI Annual Winter School on
Nuclear and Particle Physics, St.Petersburg,25 Feb -- 3 Mar 2002. Compiled by
S.Mohanty and F.Soderberg from the transparencies of the talk presented by
the Late Prof. Bo Andersson.