E. de Obaldia, P. Tirado, J. Alcantar, J. Montes, and O. Auciello, “Photoluminescence in Raman Scattering: Effects of HfO2 Template Layer on Ultrananocrystalline Diamond (UNCD) Films Grown on Stainless Steel Substrates”, KEG, vol. 3, no. 2, pp. 263-372, Feb. 2018.