JinSook, K. (2000). Effective Preprocessing for Character Recognition Using LBG Algorithm, Thesis(Mater), Yonsei Graduate School : Computer Science

JinSook, K., IlByung, L., and YoungChel, B. (1999). Numeric Character Recognition on OCR GIRO Form, Korean Information Science Society Conference, Vol. 26, No. 2, pp.446-448