A Declarative Debugging Environment for DATALOG. - Francesco Russo; Mirko Sancassani (RCLP, 1991)

LogicSQL: Augmenting SQL with Logic. - Ugo Manfredi; Mirko Sancassani (GULP-PRODE (2), 1994)

IDEA: Intelligent Data Retrieval in Prolog. - Cristina Ruggieri; Mirko Sancassani (GULP-PRODE (2), 1994)

The IDEA User Interface: the Power of Logic Programming in GUI Implementations. - Mirko Sancassani; G. Dore; Ugo Manfredi (GULP-PRODE (2), 1994)

Intelligent Data Retrieval in Prolog: An Illuminating Idea. - Cristina Ruggieri; Mirko Sancassani; Nenna Dore; Francesco Russo; Ugo Manfredi (J. Log. Program., 1996)