Parabolic Higgs bundles and $\Gamma$-Higgs bundles (with Indranil Biswas and M. L. Wong). J. Aust. Math. Soc. 95 (2013), no. 3, 315-328. pdf-file
Root stacks, principal bundles and connections (with Indranil Biswas and M. L. Wong). Bull. Sci. Math. 136 (2012), no. 4, 369-398. pdf-file
Homomorphisms of vector bundles on curves and parabolic vector bundles on a symmetric product (with Indranil Biswas). Proc. Amer. Math. Soc. 140 (2012), no. 9, 3017-3024. pdf-file
Orthogonal and symplectic parabolic bundles (with Indranil Biswas and M. L. Wong). J. Geom. Phys. 61 (2011), no. 8, 1462-1475. pdf-file
Parabolic bundles in positive characteristic. (with Manish Kumar) arxiv page