**In progress: **

"Poisson manifolds of compact type", with R.L. Fernandes and D.M. Torres.

**Preprints: **

"On slice theorems for proper Lie groupoids", preprint 2011.

"A Normal Form Theorem around Symplectic Leaves", with Ioan Marcut, preprint 2010.

"Representations up to homotopy of groupoids and the Bott spectral sequence",
with C.A. Abad, preprint 2008

"On the perturbation lemma, and deformations",
preprint 2004 , revised in 2008

**Papers: **

"Representations up to homotopy of Lie algebroids", Journal für die reine und angewandte Mathematik (Crelles Journal), 2012.

"On the existence of symplectic realizations",
with Ioan Marcut, Journal of Symplectic Geometry, 2012.

"A geometric approach to Conn's linearization", with R.L. Fernandes, Annals of Mathematics 173 (2011), 1119-1137.

"Generalized complex structures and Lie brackets",
Proceedings of Poisson 2010, Bulletin of the Brazilian Mathematical Society, New Series, December 2011, Volume 42, Issue 4, pp 559-578.

"Tensor products of representations up to homotopy", with C.A. Abad and B. Dherin, Journal of Homotopy and Related Structures, Vol. 6(2011), No. 2, pp. 239-288.

"The Weil algebra and Van Est isomorphisms",
with C.A. Abad, Annales de L'Institut Fourier 61 no. 3 (2011), p. 927-970.

"Lectures on Integrability of Lie Brackets",
with R.L. Fernandes, Lecture notes for the 2005 Summer School in Poisson Geometry ICTP-Trieste,
published in Geometry & Topology Monographs 17 (2011) 1–107.

"Stability of symplectic leaves",
with R.L. Fernandes, Inventiones Math. 180 (2010), pp. 481.

"Dirac geometry, quasi-Poisson actions and D/G-valued moment maps",
with H. Bursztyn, J. Differential Geom. 82 (2009), pp. 501-566.

"Deformations of Lie brackets: cohomological aspects",
with I. Moerdijk,
* Journal of the EMS, *10 (2008), pp. 1037- 1059

"Integrability of Jacobi and Poisson structures",
with C. Zhu,
* Ann. Inst. Fourier*, 57 (2007), no. 4, 1181--1216.

"Rigidity and flexibility in Poisson geometry",
with R.L. Fernandes,
* Trav. Math.,* XVI (2005), pp. 53-68.

"Quasi-Poisson structures as Dirac structures",
with H. Bursztyn and P. Severa,
* Trav. Math.,* XVI (2005), 41--52.

"Exotic characteristic classes of Lie algebroids",
with R.L. Fernandes,
* Quantum field theory and noncommutative geometry, * Lecture Notes in Phys., (2005), 41--52.

"Dirac structures, moment maps and quasi-Poisson manifolds",
with H. Bursztyn
* The breadth of symplectic and Poisson geometry, * 1--40, Progr. Math., 232, Birkhäuser, 2005

"Prequantization and Lie brackets",
* J. Symplectic Geom.*, 2 (2004), no. 4, 579--602.

"Integration of twisted Dirac brackets",
with H. Bursztyn, A. Weinstein, and C.Zhu,
*Duke Math. J.*, 123 (2004), no. 3, 549--607.

"Integrability of Poisson manifolds",( abstract)
*J. Differential Geom.*, 66 (2004), no. 1, 71--137.

"Cech-DeRham theory for leaf spaces of foliations",
with Ieke Moerdijk,
*Math. Ann.* 328 (2004), 59-85,

"Integrability of Lie brackets",( abstract)
with R.L. Fernandes,
* Annals of Mathematics* 157, (2003) 575-620.

"Differentiable and algebroid cohomology, van Est isomorphisms,
and characteristic classes, ( abstract)
* Commentarii Mathematici Helvetici* 78 (2003), 681-721.

"Foliation groupoids and their cyclic homology", ( abstract)
with Ieke Moerdijk,
* Advances of Mathematics* 157 (2001)

"Cyclic cohomology of Hopf algebras" , ( abstract) (January- July 1999),
* Journal of Pure and Applied Algebra* (2001)

"A Homology Theory for Etale Groupoids", ( abstract)
with Ieke Moerdijk,
Crelle's * J. Reine Angew. Math.* 521 (2000)

"Connections up to homotopy and characteristic classes", ( abstract)
* preprint*, October 2000

"Chern characters via connections up to homotopy", ( abstract)
* preprint*, September 2000

"Cyclic Cohomology of Etale Groupoids; The General Case", ( abstract)
* K-Theory* 17 (1999)

"On two-primary algebraic K-theory of quadratic number rings with focus on K_2", ( abstract)
with Paul Arne Ostvaer,
* Acta Arith.* 87 (1999)

"A note on the denseness of complete invariant metrics", ( abstract available only)
with C. Varga,
* Publ. Math. Debrecen* 51 (1997)

**Other Papers ** (on interpolation)

"Birkhoff interpolation with rectangular sets of nodes",
with N. Crainic,
* preprint*, 2002

"Birkhoff interpolation with rectang. sets of nodes and with few deriv.",
with N.Crainic,
* East Journal on Approximations,* 14 no 4 (2008), pp. 423-437.

"Polya conditions for multivariate Birkhoff interpolation: from general to rectangular
sets of nodes",
with N.Crainic,
* Acta Mathematica Universitatis Comenianae,* 79 (2010), pp. 9-18.

"Normal bivariate Birkhoff interp. schemes and Pell's equation",
with N.Crainic,
* Commentationes Mathematicae Universitatis Carolinae,* 50 (2009) 265-272.

** PhD Thesis: ** go