%0 Journal Article %A Buskes, G. J. H. M. %A Van Rooij, A. C. M. %T Riesz spaces and the ultrafilter theorem, I %J Compositio Mathematica %D 1992 %P 311-327 %V 83 %N 3 %I Kluwer Academic Publishers %U http://www.numdam.org/item/CM_1992__83_3_311_0/ %G en %F CM_1992__83_3_311_0