[Kim, Miyoung, http://uk.reuters.com/article/2014/04/22/uk-korea-ship-company-idUKBREA3L0TS20140422, Company that owned ill-fated South Korea ferry has chequered past, Reuters, Uk.Reuters, 22 April 2014, 29 May 2014]
Yoo in a 1999 interview with a monthly magazine Chosun after filing for bankruptcy.