1. Park, S.: Five episodes related to generalized convex spaces. Nonlinear Funct. Anal. Appl., 2, 49–61 (1997)
2. Park, S.: Continuous selection theorems in generalized convex spaces. Numer. Funct. Anal. and Optimiz., 25, 567–583 (1999)
3. Park, S.: Fixed points of lower semicontinuous multimaps in LC-metric spaces. J. Math. Anal. Appl., 235, 142–150 (1999)
4. Park, S.: Ninety years of the Brouwer fixed point theorem. Vietnam J. Math., 27, 193–232 (1999)
5. Park, S.: Fixed points of better admissible multimaps on generalized convex spaces. J. Korean Math. Soc., 37, 885–899 (2000)