1. “JET”, Fusion Technology special issue, volume II, number 1, Futee II (1) 1–282 (1987), ISSN: 0748–1896.
2. H Altmann et al “The JET Neutral Beam Line, Component Design Features and Assembly” Symposium on Fusion Technology SOFT 12/Juelich.
3. W Obert, P H Rebut, G Duesing “Cryopumps for JET-Design of Large Scale System of Open Configuration for High Specific Pumping Speed” 9th Symposium on Engineering Problems of Fusion Research, Chicago 1981.
4. W Obert et al “Emmissivity Measurements of Metallic Surfaces Used in Cryogenics” Advances in Cryogenic Engineering, (CEC Conference, San Diego, 1981) Vol 27, pg 293–300.
5. W Obert et al “Operation and Performance of the Large Scale JET Cryopump System” 14th Symposium on Fusion Technology, Avignon, September 1986.