1. Development of helium-heated steam reformers;Kugeler,1976
2. Nuclear process heat supply by an interconnected piping system;Harth,1981
3. Status of component development for the high-temperature reactor for process heat generation;Harth;Nucl. Engrg. Des.,1985
4. KVK and status of the high-temperature component development;Jansing,1986
5. Results of the PNP project;Brandstetter,1987