1. A method for estimating the optimum load resistance of a silicon solar cell used in terrestrial power applications;Bhaskar Rao;Solar Energy,1973
2. Non-linear Automatic Control;Gibson,1963
3. The Quarie optimal controller;White;Inst. Automat.,1956
4. Principles of optimalising control systems and an application to the internal combustion engine;Draper;A.S.M.E.,1951
5. Passive solar array orientation devices for terrestrial application;Fairbanks;Solar Energy,1973