Measures of Uncertainty in Expert Systems. - Peter Walley (Artif. Intell., 1996)

Examples of Independence for Imprecise Probabilities. - Inés Couso; Serafín Moral; Peter Walley (ISIPTA, 1999)

Coherence of rules for defining conditional possibility. - Peter Walley; Gert De Cooman (Int. J. Approx. Reason., 1999)

Towards a unified theory of imprecise probability. - Peter Walley (Int. J. Approx. Reason., 2000)

A behavioral model for linguistic uncertainty. - Peter Walley; Gert De Cooman (Inf. Sci., 2001)

Graphoid properties of epistemic irrelevance and independence. - Fábio Gagliardi Cozman; Peter Walley (Ann. Math. Artif. Intell., 2005)