Thermodynamic optimization of the Ho–Sn system A. Iddaoudi, N. Selhaoui, S. Kardellass, M. Ait Amar, R. Karioui, K. Mahdouk, H. Najih and L. Bouirden MATEC Web of Conferences, 3 (2013) 01051 Published online: 01 July 2013 DOI: 10.1051/matecconf/20130301051