%0 Journal Article %A Russell, Peter %T Simple birational extensions of two dimensional affine rational domains %J Compositio Mathematica %D 1976 %P 197-208 %V 33 %N 2 %I Noordhoff International Publishing %U http://www.numdam.org/item/CM_1976__33_2_197_0/ %G en %F CM_1976__33_2_197_0