%0 Journal Article %A Joseph Becker %A Leonard Lipshitz %T Remarks on the elementary theories of formal and convergent power series %J Fundamenta Mathematicae %D 1979 %P 229-239 %V 105 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-105-3-229-239/ %R 10.4064/fm-105-3-229-239 %G en %F 10_4064_fm_105_3_229_239