1. Study on the possibilities for a solar thermal power plant in the Val Maroz;Fricker;Bull SEV/VSE,1985
2. Fricker HW. PHOEBUS phase 1A executive summary, report. CH 5232 Villigen-PSI: Paul Scherrer Institute (PSI); 1988.
3. Fricker HW. PHOEBUS phase 1B executive summary, report. CH 5232 Villigen-PSI: Paul Scherrer Institute (PSI); 1990.
4. Proposal for a novel type of solar gas receiver;Fricker,1983
5. Tests with a small volumetric wire receiver;Fricker,1986