%0 Journal Article %A Paweł Walczak %T Integral formulae for foliations with singularities %J Colloquium Mathematicum %D 2017 %P 141-148 %V 150 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm7105s-12-2016/ %R 10.4064/cm7105s-12-2016 %G en %F 10_4064_cm7105s_12_2016