J. Korean Math. Soc. 2018; 55(5): 1177-1178
Online first article August 14, 2018 Printed September 1, 2018
https://doi.org/10.4134/JKMS.j170623
Copyright © The Korean Mathematical Society.
Hai-lan Jin, Da Woon Jung, Yang Lee, Sung Ju Ryu, Hyo Jin Sung, Sang Jo Yun
Yanbian University, Pusan National University, Daejin University, Pusan National University, Pusan National University, Dong-A University
2015; 52(3): 649-661
2015; 52(6): 1161-1178
2014; 51(3): 495-507
2008; 45(3): 727-740
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