%0 Journal Article %A H. A. Dye %T Pure virtual braids homotopic to the identity braid %J Fundamenta Mathematicae %D 2009 %P 225-239 %V 202 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm202-3-2/ %R 10.4064/fm202-3-2 %G en %F 10_4064_fm202_3_2