1. Abad C.A., Crainic, M.: Representations up to homotopy and Bott’s spectral sequence for Lie groupoids (2009). Preprint arXiv:0911.2859
2. Abad, C.A., Crainic, M.: Representations up to homotopy of Lie algebroids. J. Reine Angew. Math. 663, 91–126 (2012)
3. Arias, C.A., Crainic, M.: The Weil algebra and the Van Est isomorphism. Ann. Inst. Fourier (Grenoble) 61(3), 927–970 (2011)
4. Behrend, K.A.: On the de Rham cohomology of differential and algebraic stacks. Adv. Math. 198(2), 583–622 (2005)
5. Blair, D.E.: Riemannian Geometry of Contact and Symplectic Manifolds, vol. 203, Progress in Mathematics