%0 Journal Article %A Schikhof, W. H. %T Borel’s theorem for $C^\infty $-functions on a non-archimedean valued field %J Compositio Mathematica %D 1985 %P 289-294 %V 55 %N 3 %I Martinus Nijhoff Publishers %U http://www.numdam.org/item/CM_1985__55_3_289_0/ %G en %F CM_1985__55_3_289_0