Woohyun Hwang Ingyu Choi Dongchae Ra Jungho Lee Sang Kyu Kim Zong Woo Geem Case study of renewable-only smart grid system for a Korean island. 1-4 2014 ISGT https://doi.org/10.1109/ISGT.2014.6816394 conf/isgt/2014 db/conf/isgt/isgt2014.html#HwangCRLKG14