Bull. Korean Math. Soc. 2018; 55(4): 1013-1022
Online first article March 8, 2018 Printed July 31, 2018
https://doi.org/10.4134/BKMS.b170479
Copyright © The Korean Mathematical Society.
Jong Taek Cho
Chonnam National University
© 2022. The Korean Mathematical Society. Powered by INFOrang Co., Ltd