서울신문
http://www.seoul.co.kr/news/newsView.php?id=20181211025015&wlog_tag3=naver
중앙일보
https://news.joins.com/article/23201159
한겨레신문
http://www.hani.co.kr/arti/society/society_general/873784.html
연합뉴스
https://www.yna.co.kr/view/AKR20181210072900005?input=1195m