1. G. E. Barr and P. D. O’Brien, Personal Communication and Invention Disclosure to Sandia Laboratories and the United States Department of Energy (DOE ), (March 1976).
2. A. Jacobson and R. Pusch, “Deposition of High-Level Radioactive Waste Products in Bore-holes with Buffer Substance,” KBS Technisk Rapport 03, Stockholm (1977).
3. Decommissioning of Underground Facilities;MS Guiffre,1979
4. KBS Technisk Rapport 55;B Allard,1977
5. Del 2, KBS Technisk Rapport 98;B Allard,1978