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Scopus-Elsevier Publons IJCAI'99: Proceedings of the 16th international joint conference on Artifical intelligence-Volume 1 Sixteenth International Joint Conference on Artificial Intelligence (IJCAI 1999) Sixteenth International Joint Conference on Artificial Intelligence (IJCAI 1999), The International Joint Conferences on Artificial Intelligence, Inc., 1999, Stockholm, Sweden. pp.442-447