%0 Journal Article %A Yacoub, K. R. %T A note on semi-special permutations %J Glasgow mathematical journal %D 1958 %P 164-169 %V 2 %N 4 %U http://geodesic.mathdoc.fr/articles/10.1017/S2040618500033657/ %R 10.1017/S2040618500033657 %F 10_1017_S2040618500033657