Search for 100 TeV gamma rays with an air shower array at the South Pole. Smith, N. J. T. ; Gaisser, T. K. ; Hillas, A. M. ; Ogden, P. A. ; Perrett, J. C. ; Pomerantz, M. A. ; Reid, R. J. O. ; Stanev, T. ; Walker, A. ; Watson, A. A. ; Weekes, T. C. Abstract Publication: Frontier Objects in Astrophysics and Particle Physics Pub Date: 1991 Bibcode: 1991foap.conf..409S