Logics of knowledge and belief - applications. - Nicholas Measor (Artif. Intell. Rev., 1991)

On Duality for the Modal µ-Calculus. - Simon Ambler; Marta Z. Kwiatkowska; Nicholas Measor (CSL, 1993)

Duality and the Completeness of the Modal mu-Calculus. - Simon Ambler; Marta Z. Kwiatkowska; Nicholas Measor (Theor. Comput. Sci., 1995)