1. Barta č.:in Proc. Symposium on Mercury (I) Halides, Liblice (Czechoslovakia), 1976, p. 7.
2. Barta č., Trnka J., Beljajev L. M.:in Proc. Symposium on Mercury (I) Halides, Liblice (Czechoslovakia), 1976, p. 111.
3. Pringsheim P.: Fluorescence and Phosphorescence. Interscience, New York, 1949, p. 501.
4. Ejder E.: J. Phys. Chem. Solids31 (1970) 453.
5. Gallivan J. B., Deb S. K.: J. Luminescence6 (1973) 77.