%0 Journal Article %A Chapman, T. A. %T Invariance of Torsion and the Borsuk Conjecture %J Canadian journal of mathematics %D 1980 %P 1333-1341 %V 32 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-103-5/ %R 10.4153/CJM-1980-103-5 %F 10_4153_CJM_1980_103_5