1. “Possibilities of Introduction of New Energy Systems,” Part V, “Distance Heat,” Programme Group System Research and Technological Development of the Nuclear Research Centre Jülich (1975).
2. H. REENTS, “Sectorial Development of the Final and Utilitarian Energy Demand in the FRG,” Dissertation, Essen (1977).
3. “Planning Study About a Chemical Bound Energy Supply, Especially for the Area of Frankfurt/M, with Hot Water Distance Heat Supply for the Area of Cologne,” Programme Group System Research and Technological Development of the Nuclear Research Centre Jülich, in preparation;
4. Low-Temperature Heat from High-Temperature Reactors by Means of Nuclear Long-Distance Energy
5. H. B. WIBBE, “Problems of Temporary Introduction to the Market of Secondary Energy Systems of Nuclear Long-Distance Energy,” Dissertation in preparation.