Bull. Korean Math. Soc. 1995; 32(2): 251-257
Printed December 1, 1995
Copyright © The Korean Mathematical Society.
Sung Sik Woo
Ewha Womans University
2021; 58(5): 1261-1278
2014; 51(5): 1411-1423
© 2022. The Korean Mathematical Society. Powered by INFOrang Co., Ltd