astro-ph.HE
SPHERE-3: tackling the problem of primary cosmic ray mass composition with a new approach
V. I. Galkin C. G. Azra E. A. Bonvech D. V. Chernov E. L. Entina V. I. Ivanov V. S. Latypova D. A. Podgrudkov T. M. Roganova and M. A. Ziva