1. The Tevatron
2. Fantasies of future Fermilab facilities
3. Proc. DPF Summer Study on the Physics of Future Accelerators (Snowmass, Co. to be published).
4. H. Hirabayashi et al., K.E.K. (1980), private communication.
5. See, for instance, K. Kleinknecht, in: Proc. 1978 CERN School of Physics, CERN 78-10.