TY - JOUR AU - Bingham, N. H. AU - Ostaszewski, A. J. TI - Homotopy and the Kestelman–Borwein–Ditor Theorem JO - Canadian mathematical bulletin PY - 2011 SP - 12 EP - 20 VL - 54 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2010-093-4/ DO - 10.4153/CMB-2010-093-4 ID - 10_4153_CMB_2010_093_4 ER -