%0 Journal Article %A Vetro, Francesca %T Irreducibility of Hurwitz Spaces of Coverings with Monodromy Groups Weyl Groups of Type $W(B_d)$ %J Bollettino della Unione matematica italiana %D 2007 %P 405-431 %V 10B %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/BUMI_2007_8_10B_2_a9/ %G en %F BUMI_2007_8_10B_2_a9