Characteristics of Low-Energy Hadrons and Muons of 1015 - 3 x 1019 eV EAS at Different Atmosphere Levels Sleptsova, V. R. ; Efimov, N. N. ; Egorov, T. A. ; Pravdin, M. I. ; Kalmykov, N. N. Abstract Publication: International Cosmic Ray Conference Pub Date: August 1991 Bibcode: 1991ICRC....4..343S