Ownership Structure and the Relationship Between Financial Slack and R&D Investments: Evidence from Korean Firms. - Hicheon Kim; Heechun Kim; Peggy M. Lee (Organ. Sci., 2008)

Semantic concept-enriched dependence model for medical information retrieval. - Sungbin Choi; Jinwook Choi; Sooyoung Yoo; Heechun Kim; Youngho Lee (J. Biomed. Informatics, 2014)