1. The Utah Fly's Eye detector
2. The prototype high-resolution Fly's Eye cosmic ray detector
3. J. Abraham et al., Auger Collaboration, Nucl. Instr. Meth., accepted for publication
4. L. Scarsi et al., 27th International Cosmic Ray Conference, Hamburg, vol. 2, 2001, p. 839
5. L. Scarsi et al., 26th International Cosmic Ray Conference, Salt Lake City, vol. 2, 1999, p. 384