J. Korean Math. Soc. 1998; 35(2): 269-280
Printed June 1, 1998
Copyright © The Korean Mathematical Society.
E. G. Kwon
Andong National University
2021; 58(4): 799-817
2020; 57(4): 973-986
2017; 54(2): 599-612
2000; 37(2): 139-175
© 2022. The Korean Mathematical Society. Powered by INFOrang Co., Ltd