%0 Journal Article %A Bernard de Mathan %T Approximation exponents for algebraic functions in positive characteristic %J Acta Arithmetica %D 1991 %P 359-370 %V 60 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-60-4-359-370/ %R 10.4064/aa-60-4-359-370 %G en %F 10_4064_aa_60_4_359_370