Point source search techniques in ultra high energy gamma ray astronomy
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 328:3 (1993) 570-577
Daily search for emission of ultra-high-energy radiation from point sources
The Astrophysical Journal American Astronomical Society 405 (1993) 353
Results from the CYGNUS extensive air shower array
AIP Conference Proceedings AIP Publishing (1993) 1181-1188
The CYGNUS extensive air-shower experiment
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 311:1-2 (1992) 350-367
A search of the northern sky for ultra-high-energy point sources
The Astrophysical Journal American Astronomical Society 383 (1991) l53