Jung-Hoon Suh, Jin-Tae Lee, Sang-Su Jang, and Jae-Il Lee, “ISCS(Information Security Check Service) for the Safety and Reliability of the Information and Communication Service,” Proceedings of the 7th International Business Information Management Association (IBIMA), ISBN: 978-0-9753393-6-7, 14- 16 December 2006, Brescia, Italy, p 235-238.
Jin-Soo Lim, Sang-Hwan Park, Seak-Lae Lee, and Jae-Il Lee, “A Study on Technology for Checking the Duplication of Internet-based Alternatives to the Korean Social Security Number,” Proceedings of the 7th International Business Information Management Association (IBIMA), ISBN: 978-0-9753393-6-7, 14- 16 December 2006, Brescia, Italy, p 269-278.