| 2019 | On Power Similarity of Complex Symmetric Operators | 고응일; 이미정 | Article |
| 2017 | On preventive maintenance of systems with lifetimes dependent on a random shock process | 차지환 | Article |
| 2018 | On preventive maintenance under different assumptions on the failure/repair processes | 차지환 | Article |
| 2022 | On principal graphical models with application to gene network | 김경원 | Article |
| 2000 | On probabilistic properties of nonlinear ARMA(p,q) models | 이외숙 | Article |
| 2021 | On properties of C-normal operators | 고응일; 이미정 | Article |
| 2023 | On properties of C-normal operators II | 고응일 | Article |
| 2018 | On properties of the operator equation TT* = T plus T* | 고응일; 안일주 | Article |
| 2004 | On quasinilpotent operators, II | 고응일 | Article |
| 2005 | On quasinilpotent operators. III | 고응일 | Article |
| 2021 | ON QUASINORMALITY OF SINGULAR INTEGRAL OPERATORS WITH CAUCHY KERNEL ON L-2 | 고응일 | Article |
| 1999 | On radio and X-ray emission mechanisms in nearby, X-ray-bright galactic nuclei | 이인수 | Article |
| 1999 | On radio and X-ray emission mechanisms in nearby, X-ray-bright galactic nuclei | 이인수 | Article |
| 2015 | On Rank One Perturbations of Complex Symmetric Operators | 고응일; 이지은 | Article |
| 2011 | On rank one perturbations of the unilateral shift | 고응일; 이지은 | Article |
| 2007 | On rank-one perturbations of normal operators | 고응일 | Article |
| 2008 | On rank-one perturbations of normal operators, II | 고응일 | Article |
| 2011 | On scalar extensions and spectral decompositions of complex symmetric operators | 고응일; 이지은 | Article |
| 2016 | On Solving the Singular System Arisen from Poisson Equation with Neumann Boundary Condition | 민조홍 | Article |
| 2019 | On some characteristics of quality for systems operating in a random environment | 차지환 | Article |
