J. Korean Math. Soc. 1996; 33(2): 259-268
Printed June 1, 1996
Copyright © The Korean Mathematical Society.
Y. O. Sung, J. H. Jeong, and C. H. Seo
Kongju University, Seonam University, and Institute Defence of Information Systems
© 2022. The Korean Mathematical Society. Powered by INFOrang Co., Ltd