J. Korean Math. Soc. 1995; 32(2): 321-328
Printed June 1, 1995
Copyright © The Korean Mathematical Society.
Tae-Sung Kim and Eun-Yang Seok
Won Kwang University and Won Kwang University
1996; 33(4): 801-811
1996; 33(4): 909-928
1998; 35(3): 793-802
© 2022. The Korean Mathematical Society. Powered by INFOrang Co., Ltd