29 Nov 2004 / in Fundamental Physics Meeting "Alberto Galindo", R. F. Alvarez-Estrada, A. Dobado, L. A. Fernandez, M. A. Martin-Delgado, A. Munoz Sudupe (Eds.). Aula Documental de Investigacion, Madrid, 2004, pp. 253-261
5 Mar 1998 / in "Large Scale Structure: Tracks and Traces", eds. V. M"uller, S. Gottl"ober, J. P. M"ucket, & J. Wambsganss, (Singapore: World Scientific), pp. 1-8 (1998)