%0 Journal Article %A Breda D'Azevedo, Antonio %A Jones, Gareth %A Nedela, Roman %A Škoviera, Martin %T Chirality groups of maps and hypermaps %J Journal of Algebraic Combinatorics %D 2009 %P 337-355 %V 29 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JAC_2009__29_3_a2/ %G en %F JAC_2009__29_3_a2