1. Solar energy collectors of overlapped-glass-plate type;Löf,1950
2. Multiple gauze flat plate solar air heaters;Bliss,1955
3. Heating air by solar energy;Buelow;Agricultural Engineering,1957
4. Evaluation of flat plate solar collector performance;Hottel,1955
5. Corrugated solar heat collectors for crop drying;Buelow,1962