Publications: 2009년
 
논문
- K.Y. Kim, S.M. Kim, J.M. Rhee, Y.S. Ryu, "A Leader Management Scheme for Fault-Tolerant Multiple Subnets," International Conference on NCM, Aug, 2009. 
 
- K.Y. Kim, J.M. Rhee, Y.S. Ryu, "SAFE: Scalable Autonomous Fault-tolerant Ethernet," International Conference on Advanced Communication Technology, Feb, 2009.
 
- K.Y. Kim, S.M. Kim, J.M. Rhee, Y.S. Ryu, "A Master Election Algorithm for Scalable Fault-tolerant Network,"  International Conference on Internet Computing, Las Vegas, USA, July. 2009.  
 
 
특허
- Y.S. Ryu, K.Y. Kim, J.M. Rhee, "서브넷에서 마스터 노드를 선출하는 방법," Korea Patent Application No. xxx, Oct. 29, 2009.
 
 
저서
- S.W. Hong, Y.S. Ryu "이산수학의 기초(Discrete Mathematics)," GS인터비전, 2009년 3월.