Media type: E-Article Title: Red-to-blue up-conversion spectroscopy of Tm 3+ in SrF 2 , CaF 2 , BaF 2 and CdF 2 Contributor: Jouart, J.P.; Bouffard, M.; Klein, G.; Mary, G. imprint: Elsevier BV, 1994 Published in: Journal of Luminescence Language: English DOI: 10.1016/0022-2313(94)90102-3 ISSN: 0022-2313 Keywords: Condensed Matter Physics ; Biochemistry ; General Chemistry ; Atomic and Molecular Physics, and Optics ; Biophysics Origination: Footnote: