Investigation of EAS cores S.B. Shaulov, P.F. Beyl, R.U. Beysembaev, E.A. Beysembaeva, S.P. Bezshapov, A.S. Borisov, K.V. Cherdyntceva, M.M. Chernyavsky, A.P. Chubenko, O.D. Dalkarov et al. (26 more) EPJ Web Conf., 145 (2017) 17001 Published online: 26 June 2017 DOI: 10.1051/epjconf/201714517001