Zhongguo ren min huo bi du lu (Mandarin Chinese Edition) by FengXu 214 Pages, Published 1993 by Zhongguo She Hui Ke Xue Chu Ban She ISBN-13: 978-7-5004-1450-6, ISBN: 7-5004-1450-1
Power system security assessment identification of critical contingencies and outage distance by a zone filter by FengXu 213 Pages, Published 1993 ISBN-13: 978-82-7119-594-6, ISBN: 82-7119-594-8