1.

Conference Proceedings
Conference Proceedings
1. Photoluminescence study of erbium in silicon with a free-electron laser
Tsimperidis,I. ; Gregorkiewicz,T. ; Bekman,H.P.Th. ; Langerak,C.J.G.M. ; Ammerlaan,C.A.J.
Pub. info.: Defects in semiconductors, icds-19 : proceedings of the 19th International Conference on Defects in Semiconductors, Aveiro, Portugal, July 1997.  Part3  pp.1497-1502,  1997.  Zurich, Switzerland.  Trans Tech Publications
Title of ser.: Materials science forum
Ser. no.: 258-263
2.

Conference Proceedings
Conference Proceedings
2. Excitation of Rare Earths in Semiconductors by the Excitonic Auger Recombination
Tsimperidis,I. ; Gregorkiewicz,T. ; Ammerlaan,C.A.J.
Pub. info.: Proceedings of the 18th International Conference on Defects in Semiconductors : ICDS-18, Sendai, Japan, July 23-28, 1995.  pp.591-596,  1995.  Zurich, Switzerland.  Trans Tech Publications
Title of ser.: Materials science forum
Ser. no.: 196-201