1. Belnap, N.D.: A useful four-valued logic. In: Dunn, J.M., Epstein, G. (eds.) Modern Uses of Multiple-Valued Logic, pp. 7–37. D. Reidel, Dordrecht (1977)
2. Benferhat, S., Dubois, D., Prade, H.: Argumentative inference in uncertain and inconsistent knowledge base. In: Proceeding of the 9th Conference on Uncertainty in Artificial Intelligence, Washington, DC, 9–11 July, pp. 411–419. Morgan Kaufmann, San Mateo (1993)
3. Benferhat, S., Dubois, D., Prade, H.: Reasoning in inconsistent stratified knowledge bases. In: Proceeding of the 26 IEEE International Symposium on Multiple-Valued Logic (ISMVL 1996), Santiago de Compostela, Spain, pp. 184–189, 29–31 May 1996
4. Benferhat, S., Dubois, D., Prade, H.: Some syntactic approaches to the handling of inconsistent knowledge bases: a comparative study. Flat Case Stud. Logica 58, 17–45 (1997)
5. Benferhat, S., Dubois, D., Prade, H.: An overview of inconsistency-tolerant inferences in prioritized knowledge bases. In: Dubois, D., Prade, H., Klement, E.P. (eds.) Fuzzy Sets, Logic and Reasoning about Knowledge, pp. 395–417. Kluwer Academic Publisher, Dordrecht (1999)