González–Vidal, J., Olvera, M. d. l. L., Maldonado, A., Reyes–Barranca, A., & Meléndez–Lira, M. (2006). CO sensitivity of undoped-ZnO, Cr-ZnO and Cu-ZnO thin films obtained by spray pyrolysis. Revista Mexicana de Física.

González–Vidal, J.L., M. de la L. Olvera, A. Maldonado, A. Reyes–Barranca, und M. Meléndez–Lira. "CO Sensitivity of Undoped-ZnO, Cr-ZnO and Cu-ZnO Thin Films Obtained By Spray Pyrolysis." Revista Mexicana De Física 2006.

González–Vidal, J.L., et al. "CO Sensitivity of Undoped-ZnO, Cr-ZnO and Cu-ZnO Thin Films Obtained By Spray Pyrolysis." Revista Mexicana De Física 2006.