Exploiting Versions for On-line Data Warehouse Maintenance in MOLAP Servers. - Heum-Geun Kang; Chin-Wan Chung (VLDB, 2002)

A compression method for prefix-sum cubes. - Heum-Geun Kang; Jun-Ki Min; Seok-Ju Chun; Chin-Wan Chung (Inf. Process. Lett., 2004)

Exploiting Versions for Transactional Cache Consistency. - Heum-Geun Kang (IEICE Trans. Inf. Syst., 2005)