Nuclear Interactions in the Atmosphere at Energies of > 10^14 eV Zhdanov, G. B. ; Brikker, S. I. ; Podgurskaya, A. V. ; Poperyekova, L. M. Abstract Publication: 12th International Cosmic Ray Conference (ICRC12), Volume 6 Pub Date: 1971 Bibcode: 1971ICRC....6.2328Z