%0 Journal Article %A Virk, Rahbar %T On Euler–Poincaré characteristics %J Comptes Rendus. Mathématique %D 2015 %P 449-453 %V 353 %N 5 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2015.02.005/ %R 10.1016/j.crma.2015.02.005 %G en %F CRMATH_2015__353_5_449_0