A Characterization of the Unit Sphere. - Jeongseon Baek; Dong-Soo Kim 005; Young Ho Kim (Am. Math. Mon., 2003)

A Characterization of Ellipses. - Dong-Soo Kim 005; Young Ho Kim (Am. Math. Mon., 2007)

Generalized Null 2-Type Surfaces in Minkowski 3-Space. - Dae Won Yoon; Dong-Soo Kim 005; Young Ho Kim; Jae Won Lee (Symmetry, 2017)

Constructions of Helicoidal Surfaces in Euclidean Space with Density. - Dae Won Yoon; Dong-Soo Kim 005; Young Ho Kim; Jae Won Lee (Symmetry, 2017)

Geodesic Chord Property and Hypersurfaces of Space Forms. - Dong-Soo Kim 005; Young Ho Kim; Dae Won Yoon (Symmetry, 2019)