%0 Journal Article %A Yu. L. Ershov %T Projectivity of the~Absolute Galois Groups of Multi-Valued Fields %J Matematičeskie trudy %D 2003 %P 28-33 %V 6 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MT_2003_6_1_a1/ %G ru %F MT_2003_6_1_a1