%0 Journal Article %A Crowley, Diarmuid J. %A Zvengrowski, Peter D. %T On the non-invariance of span and immersion co-dimension for manifolds %J Archivum mathematicum %D 2008 %P 353-365 %V 44 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_2008__44_5_a2/ %G en %F ARM_2008__44_5_a2