1. Tanaka , Y. and Kawahara , M. ( 1989 ) “Control of Flood using Finite Element Method and Optimal Control Theory”, Finite Element Analysis in Fluids, Eds. T. J. Chung and G. R. Karr , University of Alabama in Huntsville Press , 612 – 622 .
2. Kawasaki , T. and Kawahara , M. ( 1989 ) “A Flood Control of Dam Reservoir by Conjugate”, Finite Element Analysis in Fluids, Eds. T. J. Chung and G. R. Karr , University of Alabama in Huntsville Press , 629 – 634 .