%0 Journal Article %A Piotr Dowbor %T Galois coverings and splitting properties of the ideal generated by halflines %J Colloquium Mathematicum %D 2004 %P 237-257 %V 101 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm101-2-7/ %R 10.4064/cm101-2-7 %G en %F 10_4064_cm101_2_7