%0 Journal Article %A Szeto, George %T On a Sheaf of Division Rings* %J Canadian mathematical bulletin %D 1975 %P 727-731 %V 17 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-131-x/ %R 10.4153/CMB-1974-131-x %F 10_4153_CMB_1974_131_x