A Data Model and an Algebra for Querying XML Documents. - Giacomo Buratti; Danilo Montesi (DEXA Workshops, 2006)

An Approximation-Aware Algebra for XML Full-Text Queries. - Giacomo Buratti; Danilo Montesi (ICSOFT (ISDM/EHST/DC), 2007)

Approximation and Scoring for XML Data Management. - Giacomo Buratti; Danilo Montesi (ICSOFT/ENASE (Selected Papers), 2007)

Ranking for Approximated XQuery Full-Text Queries. - Giacomo Buratti; Danilo Montesi (BNCOD, 2008)