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Journal of Engineering and Applied Sciences 12 ( 2 SI ): 6304 - 6307 , 2017
Young-Woon Kim and Hyeopgeon Lee
Journal of Engineering and Applied Sciences 12 ( 3 SI ): 6542 - 6545 , 2017
Hyeopgeon Lee, Eunchul Park, Kiyoung Kim and Nam Kim
Journal of Engineering and Applied Sciences 13 ( 2 SI ): 2840 - 2844 , 2018