It was this guy, check out his listed papers on this page, many of them have to do with this topic: http://cba.snu.ac.kr/en/faculty?memberidx=60582&major=6&mod

It was this guy, check out his listed papers on this page, many of them have to do with this topic: http://cba.snu.ac.kr/en/faculty?memberidx=60582&major=6&mode=view&part=career http://cba.snu.ac.kr/en/faculty?memberidx=60582&major=6&mode...