Wei-Tzer Huang and Shyi-Wen Wang, Ling-Yi Hong, "Nature and Operation Schemes of Normally Closedloop Distribution Systems", Control, Automation, Robotics and Vision, 2008 10th International Conf.
Ali Saidian and Davar Mirabbasi, "The Effect of Size of DG on Voltage Flicker and Voltage Sag in Closedloop Distribution System", Industrial Electronics and Applications (ICIEA), 2010 the 5th IEEE Conf.
Yi Lv, Dahai You, Ke Wang and Liang Wang, "Study on Wide-area Backup Protection System for the Smart Grid", Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011 4th International Conf.
Eric Sortomme and S.S. Venkata, "Microgrid Protection Using Communication-Assisted Digital Relays", IEEE Transactions on Power Delivery, Vol. 25, No. 4, 2010.
J.Lewis Blackburn, Protective Relaying-Principles and Applications, 1987, pp. 390-422.
Kun-Yuan Shen and Jyh-Cherng Gu, "Protection Coordination Analysis of Closed-Loop Distribution System", PowerCon 2002 International Conference, Vol. 2, pp.702-706.
Bin Li, Xuan Yu and Zhiqian Bo, "Protecion schemes for closed loop distribution network with distributed generator", Sustainable Power Generation and Supply, 2009, International Conf.
Ferry A. Viawan and Daniel Karlsson, "Various Protection Schemes for Closed Loop Feeders with Synchronous Machine Based Distributed Generation and Their Impacts on Reliability", Power Tech, 2007 IEEE Lansanne, pp. 1170-1175.
Guibin Zou, Houlei Gao, Feng Zhu, "Realization scheme of directional unit protection based on travelling wave integral", Electric Utility Deregulation and Restructuring and Power Technologies(DRPT), 2011 4th International Conference.
Charles V. Walker, Electrical Distribution System Protection, pp. 125-132.