1. Protection and Control Systems of Power Systems. Denki-shoin.
2. Technical Report of the I.E.E., Japan. Stabilization Technology of Power Systems, No. 238, 1986.
3. , , and . Verificationtests of step-out preventive control system by system analysis simulator. Documents of the Power Engineering Study Group of the I.E.E., Japan, PE-93-96, 1993.