GOGA, F. et al. 2017. INFLUENCE OF THE Ni/Mg RATIO ON THE COLOUR OF SPINEL PIGMENTS PREPARED BY A MODIFIED SOL – GEL METHOD. Studia Universitatis Babeș-Bolyai Chemia. 62, 1 (Mar. 2017), 261–270. DOI:https://doi.org/10.24193/subbchem.2017.1.23.