%0 Journal Article %A Diananda, P. H. %T On a cyclic sum %J Glasgow mathematical journal %D 1963 %P 11-13 %V 6 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S2040618500034626/ %R 10.1017/S2040618500034626 %F 10_1017_S2040618500034626