1. ATLAS Collaboration, Technical Design Report, CERN-LHCC-99-15
2. CMS Collaboration, Technical Proposal, CERN-LHCC-94-38
3. G. Weiglein et al., LHC/LC study Group
4. M. Gell-Mann, P. Ramond, R. Slansky, in Supergravity, ed. by D. Freedman et al. (North-Holland, Amsterdam, 1980),
5. T. Yanagida, in Proceedings of the Workshop on Baryon Number in the Universe, ed. by O. Sawada, A. Sugamoto (KEK, 1979)