Fairbrother, A.; Fontane, X.; Izquierdo-Roca, V.; Placidi, M.; Sylla, D.; Espindola-Rodriguez, M.; Lopez-Marino, S.; Pulgarin, F.A.; Vigil-Galan, O.; Perez-Rodriguez, A.; Saucedo, E. "Secondary phase formation in Zn-rich Cu2ZnSnSe4-based solar-energy-materials-and-systems cells annealed in low pressure and temperature conditions" Progress in Photovoltaics: Research and Applications 22, 4, pp. 479 - 487. 2014 DOI: 10.1002/pip.2473