A Rule Language to Capture and Model Business Policy Specifications. - Peter McBrien; Marc Niézette; Dionysios Pantazis; Anne Helga Seltveit; Ulf Sundin; Babis Theodoulidis; Gregoris Tziallas; Rolf Wohed (CAiSE, 1991)

On the Representation of Infinite Temporal Data and Queries. - Marianne Baudinet; Marc Niézette; Pierre Wolper (PODS, 1991)