Carreño, N. L. V., Oliveira, T. C. S., Piva, E., Leal, F. B., Lima, G. S., Moncks, M. D., Raubach, C. W., & Ogliari, F. A. (2012). YbF3/SiO2 Fillers as Radiopacifiers in a Dental Adhesive Resin. Nano-Micro Letters, 4(3), 189-196. https://doi.org/10.1007/BF03353713