1. Optical studies on Europium Doped K2SO4;Kumar;Phys. Stat. Sol. (b),1989
2. Atkins, P., Simons M. The EPR spectra and structure of inorganic radicals. M. USSR, 1970, p. 310.
3. Tagayeva, B.S. The mechanisms of disintegration of the radiation defects and recombination luminescence in KDP crystals: avtoref. of diss. of cand. ph. - m. scienses. Almaty, 2010, p. 18.
4. Меyerson, Е.Е., Мurashova, Z.F. Some spectral-luminescent characteristics of iron-group ions in crystals of potassium sulphate, Almaty (Dep. in KazNIINTI, 10.08.93. N3918-Ка92).
5. Kim, L.M., Kuketaev, T.A., Tagaeva, B.S., Tulegulov, A.D. Rentgenoluminescence of K2SO4-Eu, Mat. of the 9th Int. Conf. ICPADM. 2009, Pages 1248-1249.