Christensen, G.S. Optimal control applications in electric power systems / by G.S. Christensen, M.E. El-Hawary and S.A. Soliman. - New York, N.Y. : Plenum Press, 1987. - xi, 196 p. - Mathematical Eoncepts and Methods in Science and Engineering. . ISBN: 0306425173 Subjects--Topical Terms: Electric engineering.Electric power systems.