TY - BOOK AU - Nikol'skij, S. I. AU - Stamenov, J. N. TI - Mass composition of the primary cosmic radiation in the energy interval 10¹⁵-10¹⁷ eV, derived from the Tien Shan and AKENO EAS data T2 - Preprint PY - 1982/// CY - M. KW - Космические лучи KW - Первичное излучение KW - nlr_sh1 KW - Москва KW - В632.52 KW - rubbk N2 - Библиогр.: с. 18 ER -