Tablero Crespo, C├ęsar (2014). Ionization energies of amphoteric-doped Cu2ZnSnS4: Photovoltaic application. "Journal of Alloys and Compounds", v. 586 ; pp. 22-27. ISSN 0925-8388. https://doi.org/10.1016/j.jallcom.2013.10.053.