1. Der Minister für Wirtschaft, Mittelstand und Verkehr des Landes Nordrhein-Westfalen: HTR-Komponenten. Symposium, Düsseldorf, 18–20 Jan. 1984, Schriftenreihe „Energiepolitik in Nordrhein-Westfalen“, Band 16-I, ISSN 0175–255
2. Jansing, Teubner and Theymann: Qualification of components for nuclear process heat. Soviet/German Seminar on Extraction and Utilization of High Temperature Heat from HTR, Forschungszentrum Jülich–KFA, Oct. 22–26, 1990
3. BBC AG, Brown, Boveri & Cie AG et al.: HHT-NINT-Anlagenkonzept 1000 MW, Abschlussbericht. Documentation, August 1978
4. Minatom, DOE, General Atomics, Framatome and Fuji Electric: Executive Summary of Gas-Turbine Modular Helium Reactor Conceptual Design. Framatome, Paris, June 30, 1999
5. Nicholls, D.R.: Eskom sees a nuclear future in the pebble bed. Nuclear Engineering International, Dec. 1998, p. 1