%0 Journal Article %A Lucas, Thomas G. %T Valuation Rings and Integral Closure %J Canadian mathematical bulletin %D 1990 %P 327-330 %V 33 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-054-1/ %R 10.4153/CMB-1990-054-1 %F 10_4153_CMB_1990_054_1