TY - JOUR AU - Rajan Amit Mehta TI - Modular Classes of Lie Groupoid Representations up to Homotopy JO - Symmetry, integrability and geometry: methods and applications PY - 2015 VL - 11 UR - http://geodesic.mathdoc.fr/item/SIGMA_2015_11_a57/ LA - en ID - SIGMA_2015_11_a57 ER -