- Luminescent materials based on thin metal oxide films doped with rare Earth ionsKanarjov, P.; Reedo, Valter; Oja Acik, Ilona; Matisen, L.; Vorobjov, A.; Kiisk, Valter; Krunks, Malle; Sildos, IlmoPhysics of the solid state2008 / 9, Proceedings of the XIII Feofilov Symposium "Spectroscopy of Crystals Doped by Rare-Earth and Transition-Metal Ions" (Irkutsk, July 9-13, 2007). p. 1727-1730 : ill https://link.springer.com/article/10.1134/S1063783408090278