1. Solar Energy Thermal Processes;Duffie,1974
2. Solar energy storage;Telkes;ASHRAE J.,1974
3. Phase Change Materials Handbook;Hale;NASA CR-61363,1971
4. Convervation and Better Utilization of Electric Power by Means of Thermal Energy Storage and Solar Heating;Lorsch,1973
5. Heat of fusion systems for solar energy storage;Lane,1975