%0 Journal Article %A Lou van den Dries %A Philip Ehrlich %T Fields of surreal numbers and exponentiation %J Fundamenta Mathematicae %D 2001 %P 173-188 %V 167 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm167-2-3/ %R 10.4064/fm167-2-3 %G en %F 10_4064_fm167_2_3