1. The long-term average performance of flat-plate solar-energy collectors;Liu;Solar Energy,1963
2. Solar energy and the flat plate collector, an annotated bibliography;De Winter,1974
3. Solar house heating;Tybout;Natural Resources Jl,1970
4. Conservation and Better Utilization of Electric Power by Means of Thermal Energy Storage and Solar Heating,1973
5. A Detailed Study of New England Residential Heating Systems Using Solar Energy and Heat Pumps;Peters,1974