%0 Journal Article %A Bingham, N. H. %A Ostaszewski, A. J. %T Homotopy and the Kestelman–Borwein–Ditor Theorem %J Canadian mathematical bulletin %D 2011 %P 12-20 %V 54 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2010-093-4/ %R 10.4153/CMB-2010-093-4 %F 10_4153_CMB_2010_093_4