Upconversion and energy transfer modeling in Er, Yb : CaYAlO4 B. ZANDI, L. D. MERKLE, J. A. HUTCHINSON, H. R. VERDUN et B. H.T. CHAIJ. Phys. IV France, 04 C4 (1994) C4-587-C4-590DOI: https://doi.org/10.1051/jp4:19944141