%0 Journal Article %A Nicholson, W. K. %A Yousif, M. F. %T Corrigendum %J Glasgow mathematical journal %D 1998 %P 475-476 %V 40 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S001708950003281X/ %R 10.1017/S001708950003281X %F 10_1017_S001708950003281X