- A New Ball Balancer Model and its Application,
J.H. Kim, H.S. Seo, J.W. Chang and S.M. Jeon
Paper 81 from CCP: 96, ISBN 978-1-905088-47-8 (2011)
- Optimal Design of an Auto-Leg System for Washing Machines,
H.S. Seo, M.H. Hong, T.H. Lee, J.W. Chang and S.M. Jeon
Paper 225 from CCP: 83, ISBN 1-905088-08-6 (2006)