1. The performance of solar water heater with natural circulation;Close;Solar Energy,1962
2. System design in solar water heaters with natural circulation;Gupta;Solar Energy,1968
3. Analytical and experimental study of thermosyphon solar water heaters;Nimmo,1977
4. Sun spots: Thermosyphon hot;SERI;Sunworld,1980
5. Cost effectiveness of solar systems: results of side-by-side tests of active and passive systems;Athoe,1981