Optimized Q-pivot for Exact Linear Solvers. - David-Olivier Azulay; Jean François Pique (CP, 1998)

Optimisation des Q-matrices pour la résolution de contraintes linéaires. - David-Olivier Azulay; Jean François Pique (JFPLC, 1998)

A revised simplex method with integer Q-matrices. - David-Olivier Azulay; Jean François Pique (ACM Trans. Math. Softw., 2001)

Parsing Ill-Formed Inputs with Constraint Graphs. - Philippe Blache; David-Olivier Azulay (CICLing, 2002)