Bidirecional Conversion betwenn XML Documents and Relational Data Bases. - Marta Jacinto; Giovani Rubert Librelotto; José Carlos Ramalho; Pedro Rangel Henriques (CSCWD, 2002)

XCSL tutorial. - Marta Jacinto; Giovani Rubert Librelotto; José Carlos Ramalho; Pedro Rangel Henriques (XRDS, 2002)

XCSL: XML Constraint Specification Language. - Marta Jacinto; Giovani Rubert Librelotto; José Carlos Ramalho; Pedro Rangel Henriques (CLEI Electron. J., 2003)