Developing a Triggering System for Real-Time Databases in Distributed Environment. - Hye-Sook Yoon; Hyuk Han; Young-Kuk Kim; Sung-Il Jin (ISORC, 2001)

Combinatorial proofs of inverse relations and log-concavity for Bessel numbers. - Hyuk Han; Seunghyun Seo (Eur. J. Comb., 2008)