1. The performance of flat-plate solar heat collectors;Hottel;Trans. ASME,1972
2. The effects of thermal capacitance upon the performance of flat-plate solar collectors;Klein,1973
3. Solar Engineering of Thermal Processes;Duffie,1980
4. Heat loss calculation of flat-plate solar collectors;Malhotra;J. Thermal Engineering,1981
5. Heat loss factor for linear solar concentrators;Mullick;Applied Energy,1982