W. White, M. Riedewald, J. Gehrke, и A. Demers. PODS '07: Proceedings of the twenty-sixth ACM SIGMOD-SIGACT-SIGART, стр. 263--272. New York, NY, USA, ACM, (2007)
U. Srivastava, и J. Widom. PODS '04: Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, стр. 263--274. New York, NY, USA, ACM, (2004)
B. Berstel. TIME '02: Proceedings of the Ninth International Symposium on Temporal
Representation and Reasoning (TIME'02), стр. 49-51. Washington, DC, USA, IEEE Computer Society, (2002)
S. Gatziu, и K. Dittrich. Proc. 1st Intl. Workshop on Rules in Database Systems (RIDS), Edinburgh, UK, Springer-Verlag, Workshops in Computing, (сентября 1993)