Ja A Jeong   Publications: Simple labeled graph C*-algebras are associated to disagreeable labeled spaces, J. Math. Anal. App., 461(2018), 1391-1403. (with G. H. Park). Purely infinite labeled graph C*-algebras, Ergod. Th. & Dynam. Sys. to appear (with E. J. Kang and G. H. Park). Finite simple labeled graph C*-algebras of Cantor minimal subshifts, J. Math. Anal. App. 446(2017), 395-410 (with E. J. Kang, S. H. Kim, and G. H. Park). Finite groups acting on higher dimensional noncommutative tori, J. Funct. Anal. 268(2015), 473-499 (with J. H. Lee). AF labeled graph C*-algebras, J. Funct. Anal. 266(2014), no. 4, 2153-2173 (with E. J. Kang and S. H. Kim). The structure of gauge-invariant ideals of labelled graph C*-algebras, J. Funct. Anal. 262(2012), no. 4, 1759-1780 (with S. H. Kim and G. H. Park) On simple labelled graph C*-algebras, J. Math. Anal. App. 386(2012), 631-640 (with S. H. Kim). Topological entropy and the AF core of a graph C*-algebra, J. Math. Anal. App. 354(2009), 664-673 (with G. H. Park). Cancellation for inclusions of C*-algebras of finite depth, Indiana Univ. Math. J. 58(2009), 1537-1564 (with N. C. Phillips, H. Osaka, and T. Teruya). On the stability of a fixed point algebra C*^gamma of a gauge action on a graph C*-algebra, J. Korean Math. Soc. 46(2009), 657-673 Saturated actions by finite dimensional Hopf *-algebras on C*-algebras, Intern. J. Math. 19(2008), 125-144 (with G. H. Park). Topological entropy and AF subalgebras of graph C*-algebras, Proc. Amer. Math. Soc. 134(2006), 215-228. (with G. H. Park) Dynamical systems in graph C*-algebras, Intern. J. Math. 16(2005), 999-1015 (with G. H. Park). Topological entropy for the canonical completely positive maps on graph C*-algebras, Bull. Australian Math. Soc. 70(2004), 101-116 (with G. H. Park). Stable rank and real rank of graph C*-algebras, Operator Algebras and Applications, Advanced Studies in Pure Mathematics 38, pp. 97-106, Mathematical Society of Japan 2003. Graph C*-algebras and topological entropy, Trends in Mathematics, vol 6, no.2, 41-49, Information Center for Mathematical Sciences, December 2003. Real rank of C*-algebras associated with graphs, J. Australian Math. Soc. 77(2004),141-147. Real rank of graph C*-algebras, Operator Algebras and Mathematical Physics, Constanta(Romania), 203-208, The Theta Foundation, 2003. Graph C*-algebras with real rank zero, J. Funct. Anal. 188(2002), 216-226 (with G. H. Park). Minimal index of a C*-crossed product by a finite group, Proc. Amer. Math. Soc. 129(2001), 2031-2038 (with G. H. Park). Stable rank and real rank of graph C*-algebras, Pacific J. Math. 200(2001), 331-343 (with G. H. Park and D. Y. Shin). Extremally rich graph C*-algebras, Comm. Korean Math. Soc. 15(2000), 159-171. Extremal richness of the crossed products of simple C*-algebras by finite groups, J. Australian Math. Soc. 64(1998), 285-301 (with H. Osaka). Exponential rank of C*-algebras, Bull. Korean Math. Soc. 34(1997),395-401 (with G. H. Park). Purely infinite simple C*-crossed products II, Canad. Math. Bull. 39(1996),203-210 (with K. Kodaka and H. Osaka). Purely infinite simple C*-crossed products, Proc. Amer. Math. Soc. 123(1995), 3075-3078. Projections in some simple C*-crossed products, Proc. Amer. Math. Soc. 123(1995), 3317-3321 (with G. H. Park). Topologically free actions and purely infinite C*-crossed products, Bull. Korean Math. Soc. 31(1994), 167-172. Full hereditary C*-subalgebras of crossed products, Bull. Korean Math. Soc. 30(1993), 193-199. On purely infinite C*-algebras, Proc. Amer. Math. Soc. 117(1993), 679-682 (with S. G. Lee). Purely infinite C*-algebras and full hereditary C*-subalgebras, Ph. D. Thesis, Seoul National University, February 1992.