1. Patrick M, Use of coloured pigments based on rare earths sulphurs in plastics, paints, or vanishes. European Patent EP0,203,838(A2). 1986.
2. Synthesis and sintering of cerium(III) sulfide powders;Hirai;J. Am. Ceram. Soc.,1998
3. Swiler DR, Terry JD, Axtell AE, Rare earth transition metal oxide pigments. United States Patent U.S. Patent 6,582,814, 2003.
4. Color and chemical heterogeneities of γ-[Na]-Ce2S3 solid solutions;Vasilyeva;J. Alloy. Comp.,1998
5. Industrial applications of rare earths which way for the end of the century;Maestro;J. Alloy. Comp.,1995