1. Suponitskii, Yu.L., Kuz’micheva, G.M., and Eliseev, A.A., Rare-earth oxysulfides, Usp. Khim., 1988, vol. 57, no. 3, pp. 367–384.
2. Osseni, S.A., Lechevalier, S., Verest, M., et al., New nanoplatform based on Gd2O2S:Eu3+ core: synthesis, characterization and use for in vitro bio-labelling, J. Mater. Chem., 2011, vol. 21, pp. 18 365–18 372.
3. Osseni, S.A., Lechevalier, S., Verest, M., et al., Gadolinium oxysulfide nanoparticles as multimodal imaging agents for T2-weighted MR, X-ray tomography and photoluminescence, Nanoscale, 2014, no. 6, pp. 556–564.
4. Xin Lu, Liying Yang, Qianli Ma, et al., A novel strategy to synthesize Gd2O2S:Eu3+ luminescent nanobelts via inheriting the morphology of precursor, J. Mater. Sci.: Mater. Electron., 2014, no. 25, pp. 5388–5394.
5. Mikhitar’yan, B.V., Luminescence spectra of Gd2O2S–Tb2O2S and Y2O2S–Tb2O2S solid solutions, Cand. Sci. (Phys.–Math.) Dissertation, Stavropol: Sev.-Kavk. Gos. Tekh. Univ., 2007.