On the Integration of Uncertainty Theories. - Germano Resconi; George J. Klir; Ute St. Clair; David Harmanec (Int. J. Uncertain. Fuzziness Knowl. Based Syst., 1993)

Interpretations of various uncertainty theories using models of modal logic: A summary. - Germano Resconi; George J. Klir; David Harmanec; Ute St. Clair (Fuzzy Sets Syst., 1996)