@InProceedings{1989_DDHP_TypologyIfThenRules
	address = {Seattle},
	author = {Didier Dubois and Henri Prade},
	booktitle = {Proceedings of the third International Fuzzy Systems Association Congress},
	pages = {782--785},
	title = {A typology of 'if... then' rules},
	year = {1989}
}