1、【Design and optimization of solar industrial hot water systems with storage】 Solar Energy, Volume 32, Issue 1, 1984, Pages 121-133 M. Collares-Pereira, J. M. Gordon, A. Rabl and Y. Zarmi 2、【Design, analysis and optimization of solar industrial process heat plants without storage】 Solar Energy, Volume 28, Issue 6, 1982, Pages 519-530 J. M. Gordon and A. Rabl 3、【Simple procedure for predicting long term average performance of nonconcentrating and of concentrating solar collectors】 Solar Energy, Volume 23, Issue 3, 1979, Pages 235-253 Manuel Collares-Pereira and Ari Rabl