SOME STORIES OF BRASIL-JAPAN COLLABORATION AND CHACALTAYA MOUNTAIN S.L.C. BARROSO, P.C. BEGGIO, L.F. GOMEZ G., E.J.T. MANGANOTE, A. MARIANO, M.J. MENON and E.H. SHIBUYA EPJ Web Conf., 208 (2019) 10001 Published online: 10 May 2019 DOI: 10.1051/epjconf/201920810001