1. J. M. DAWSON, “Positron Factory,” Research Report PPG-1022, University of California-Los Angeles (1986).
2. J. P. HOLDREN, D. H. BERWALD, R. J. BUDNITZ, J. G. CROCKER, J. G. DELENE, R. D. ENDICOTT, M. S. KAZIMI, R. A. KRAKOWSKI, B. G. LOGAN, and K. R. SCHULTZ, “Report of the Senior Committee on Environmental, Safety, and Economic Aspects of Magnetic Fusion Energy,” UCRL-53766, Lawrence Livermore National Laboratory (Sep. 1989).