Jovanović, D. J., Gavrilović, T. V., Dolić, S. D., Marinović-Cincović, M., Smits, K., & Dramićanin, M. D. (2018). Up-conversion luminescence of GdVO4: Nd3+/Er3+ and GdVO4:Nd3+/Ho3+ phosphors under 808 nm excitation. Optical Materials, 82, 1-6. https://doi.org/10.1016/j.optmat.2018.05.033

Jovanović, Dragana J., Tamara V. Gavrilović, Slobodan D. Dolić, Milena Marinović-Cincović, Krisjanis Smits, and Miroslav D. Dramićanin. "Up-conversion Luminescence of GdVO4: Nd3+/Er3+ and GdVO4:Nd3+/Ho3+ Phosphors Under 808 Nm Excitation." Optical Materials 82 (2018): 1-6. https://doi.org/10.1016/j.optmat.2018.05.033.

Jovanović, Dragana J., et al. "Up-conversion Luminescence of GdVO4: Nd3+/Er3+ and GdVO4:Nd3+/Ho3+ Phosphors Under 808 Nm Excitation." Optical Materials, vol. 82, 2018, pp. 1-6, https://doi.org/10.1016/j.optmat.2018.05.033.