%0 Journal Article %T On a Theorem of Burgess and Stephenson %J Canadian mathematical bulletin %D 2019 %P 603-605 %V 62 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/S0008439518000619/ %R 10.4153/S0008439518000619 %F 10_4153_S0008439518000619