%0 Journal Article %A Anthony N. Quas %T Invariant densities for C¹ maps %J Studia Mathematica %D 1996 %P 83-88 %V 120 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-120-1-83-88/ %R 10.4064/sm-120-1-83-88 %G en %F 10_4064_sm_120_1_83_88