R. Chen, Y. Kirsh, Analysis of Thermally Stimulated Processes, International Series on the Science of the Solid State, Volume 15, Pergamon Press

R. Chen, Journal of Materials Science 11 (1976) 1521-1541

R. Chen, Journal of Applied Physics Volume 40, Number 2 (Vebruary 1969)

J. H. Gibbs, J. Chem. Phys., 57 , 4473 (1972)

M. S: Rasheedy, A. M. A. Amry, Journal of Luminescence 63 (1995) 149-154

R. Chen, D. J. Huntley and G. W. Berger, phys. stat. sol. (a) 79, 251 (1983)

V. Seeman, M. Danilkin, A. Ots, E. Pedak, and L. Pung, phys. stat. Sol. (b) 208, 367 (1998)

V. Seeman, M. Danilkin, M. Must, A. Ots, E. Pedak, L. Pung and E. Pärnoja, J. Phys. Chem Solids Vol 57, No. 9, pp. 1329-1335, 1996

K. E. Tarkpea and A. E.-R. Ots, phys. stat. sol. (b) 129, 799 (1985)

C. B. Lustschik, ENSV TA Füüsika ja astronoomia instituudi uurimused, Nr. 3 (1955) (vene keeles)