1. 4f2to 4f5d excited state absorption in Pr3+:YAlO3
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3. P.T. Diallo, P. Boutinaud, R. Mahiou, J.C. Cousseins, in: P. Vincenzini, G.C. Righini (Eds.), Innovative Light Emitting Materials, Techna, 1999, p. 401.
4. Anti-Stokes luminescence and site selectivity in La2Ti2O7:Pr3+