Ultimately Periodic Simple Temporal Problems (UPSTPs). - Jean-François Condotta; Gérard Ligozat; Mahmoud Saade; Stavros Tripakis (TIME, 2006)

A Generic Toolkit for n-ary Qualitative Temporal and Spatial Calculi. - Jean-François Condotta; Mahmoud Saade; Gerard Ligozat (TIME, 2006)

Eligible and Frozen Constraints for Solving Temporal Qualitative Constraint Networks. - Jean-François Condotta; Gérard Ligozat; Mahmoud Saade (CP, 2007)

Qualitative Constraints for Job Shop Scheduling. - Jean-François Condotta; Gérard Ligozat; Mahmoud Saade (AAAI Spring Symposium: Benchmarking of Qualitative Spatial and Temporal Reasoning Systems, 2009)