Borras, A., Alvarez, R., Sanchez-Valencia, J. R., Ferrer, J., & Gonzalez-Elipe, A. R. (2012). Critical thickness and nanoporosity of TiO2 optical thin films. Microporous and Mesoporous Materials, 160, 1-9. https://doi.org/10.1016/j.micromeso.2012.04.035

Borras, Ana, Rafael Alvarez, Juan R. Sanchez-Valencia, Javier Ferrer, and Agustin R. Gonzalez-Elipe. "Critical Thickness and Nanoporosity of TiO2 Optical Thin Films." Microporous and Mesoporous Materials 160 (2012): 1-9. https://doi.org/10.1016/j.micromeso.2012.04.035.

Borras, Ana, et al. "Critical Thickness and Nanoporosity of TiO2 Optical Thin Films." Microporous and Mesoporous Materials, vol. 160, 2012, pp. 1-9, https://doi.org/10.1016/j.micromeso.2012.04.035.