1. A. Kalnins, I. Plavina, A.I. Popov, and A. Tale, Determination of the oscillator strength of F centres in KBr-In by photostimulated luminescence. - J. Phys.: Condens. Matter, 1991, 3, p. 1265-1270. pdf

2. L.G. Grigoreva, D.K. Millers, and E.A. Kotomin, Luminescence of mixed crystals of silver halides at high excitation densities. - Journal of Applied Spectroscopy, 1991, 55, p. 1140-1145. pdf