Fluctuations of the depth of maximum in extensive air showers and   cross-section of p-air inelastic interaction for energy range 10^15-10^17 eV
  We present estimation of proton-air inelastic interaction cross-section obtained for different energy values are. Results are compared with different hadron interaction models. 
S. P. Knurenko, A. Sabourov
astro-ph.HE hep-ex