Policy Engine: A Framework for Authorization, Accouting Policy Specification and Evaluation in Grids. - Babu Sundaram; Barbara M. Chapman (GRID, 2001)

XML-Based Policy Engine Framework for Usage Policy Management in Grids. - Babu Sundaram; Barbara M. Chapman (GRID, 2002)

An OGSI-compliant portal for campus grids. - Barbara M. Chapman; Hari Donepudi; Yupeng Li; Priya Raghunath; Babu Sundaram; Yonghong Yan 001; Jiwen He (CE, 2003)

Addressing credential revocation in grid environments. - Babu Sundaram; Barbara M. Chapman (GRID, 2005)

A Grid Authentication System with Revocation Guarantees. - Babu Sundaram; Barbara M. Chapman (HiPC, 2005)

Sun Grid Engine Package for OSCAR - A Google Summer Of Code 2005 Project. - Babu Sundaram; Barbara M. Chapman; Bernard Li; Mark Mayo; Asim S. Siddiqui; Steven J. M. Jones (HPCS, 2006)