%0 Journal Article %A Leland, Kenneth O. %T Topological analysis of differentiable transformations %J Compositio Mathematica %D 1967 %P 189-200 %V 18 %N 3 %I P. Noordhoff N. V., Groningen %U http://archive.numdam.org/item/CM_1967__18_3_189_0/ %G en %F CM_1967__18_3_189_0