%0 Journal Article %A Vojtěchovský, Petr %T A class of Bol loops with a subgroup of index two %J Commentationes Mathematicae Universitatis Carolinae %D 2004 %P 371-381 %V 45 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2004__45_2_a16/ %G en %F CMUC_2004__45_2_a16