1. Nominal cost and performance objectives for photovoltaic panels in non-concentrating central station applications;DeMeo,1976
2. Cost criterion for low efficiency solar cells to make system power cost competitive with that of high efficiency cells;Redfield,1978
3. Module and solar cell values as a function of efficiency
4. Graphic method for assessing value of solar conversion efficiency;Currin,1980
5. Parametric cost analysis of photovoltaic systems