1. Maintaining knowledge about temporal intervals;Allen;Comm. ACM,1983
2. Effective Scheduling of Tasks Under Weak Temporal Interval Constraints;Anger,1995
3. A temporal logic framework for a layered approach to systems specification and verification;Carmo,1987
4. Managing dynamic temporal constraint networks;Cervoni,1994
5. On-line algorithms for networks of temporal constraints;d'Amore,1997