%0 Journal Article %A Frédéric Butin %T Hochschild Homology and Cohomology of Klein Surfaces %J Symmetry, integrability and geometry: methods and applications %D 2008 %V 4 %U http://geodesic.mathdoc.fr/item/SIGMA_2008_4_a63/ %G en %F SIGMA_2008_4_a63