%0 Journal Article %A S. S. Afanas'eva %A R. P. Vostokova %T Logarithms of formal $A$-modules in the case of small ramification %J Algebra i analiz %D 2015 %P 6-13 %V 27 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2015_27_6_a1/ %G ru %F AA_2015_27_6_a1