S. McIlraith. Proceedings of the fourteenth national conference on artificial intelligence and ninth conference on Innovative applications of artificial intelligence, page 43--49. AAAI Press, (1997)
A. Felfernig, M. Schubert, and C. Zehentner. Artificial Intelligence for Engineering Design, Analysis, and Manufacturing (AIEDAM), 25 (2):
175-184(2011)