1. W. Pannhorst, V. Geiler, G. Räke, B. Speit, D. Sprenger, Production Process of Lithium Orthosilicate Pebbles. Proceedings of 20th Symposium on Fusion Technology, September 7–11, 1998, Marseille, France.
2. J.D. Lulewicz, N. Roux, G. Piazza, J. Reimann, J. van der Laan, Behaviour of Li2ZrO3 and Li2TiO3 Pebbles relevant to their utilization in the HCPB blanket. Presented at ICFRM 9, Colorado Springs, 1999.
3. G. Piazza, M. Dalle Donne, H. Werle, E. Günter, R. Knitter, N. Roux, J.D. Lulewicz, Long Term Annealing of Ceramic Breeder Pebbles for the HCPB DEMO Reactor. Proceedings of the CBBI-7, Petten, The Netherlands, September 14–16, 1998.
4. J. Reimann, G. Wörner, Thermal creep of Li4SiO4 pebble beds, Fus. Eng. Des. (2001) Vol. 56–59.