1. Optimum megawatt-frequency control of multi-area electric energy systems;Elgerd;IEEE Trans.,1970
2. The megawatt-frequency control problem: new approach via optimal control theory;Fosha;IEEE Trans.,1970
3. Models and performance functional for load frequency control in interconnected power systems;Reddoch,1971
4. Optimization of the load frequency controller via infinite bus analysis;Reddoch,1972
5. Models and optimal stochastic controller designs for interconnected power systems;Tacker,1972