Markus P. Hehlen, Mark L. F. Phillips, Nigel J. Cockroft and Hans U. Güdel
Upconversion Phosphors
in "Encyclopedia of Materials: Science and Technology", Volume
10
K. Buschow, R. W. Cahn, M. C. Flemings, B. Iischner, E. J. Kramer and S. Mahajan (eds.)
Pergamon Press, Elsevier Science, Oxford, ISBN 0-08-0431526, 9456-9458 (2001)
Abstract:
(Article without Abstract)