W. Jeon, H.-T. Moon, G. Oh, W.-S. Jung, Return time intervals analysis of the Korean stock market

C. Eom, W.-S. Jung, T. Kaizoji, S. Kim, Effect of changing data size on eigenvalues in the Korean and Japanese stock markets

H. Choi, W. Lee, S. Kim, W.-S. Jung, J.-H. Kim, Optimum refractive index of poly component particulate system on the particle size distribution measurement

C. Eom, G. Oh, W.-S. Jung, H. Jeong, S. Kim, Topological properties of stock networks based on minimal spanning tree and random matrix theory in financial time series

K. Lee, W.-S. Jung, J. S. Park, M. Y. Choi, Statistical analysis of the Metropolitan Seoul Subway System: Network structure and passenger flows

A. Petersen, W.-S. Jung, H. E. Stanley, On the distribution of career longevity and the evolution of home run prowess in professional baseball

C. Eom. G. Oh, W.-S. Jung, Relationship between degree of effciency and prediction in stock price changes

J.-S. Yang, O. Kwon, W.-S. Jung, I.-m. Kim, Agent-based approach for generation of a money-centered star network

C. Eom, W.-S. Jung, S. Choi, G. Oh, S. Kim, Effects of time dependency and efficiency on information flow in financial markets

C. Eom, S. Choi, G. Oh, W.-S. Jung, Hurst exponent and prediction based on weak-form efficient market hypothesis of stock markets