Specification and Inheritance in CSP-OZ
E.-R. Olderog, H. Wehrheim, in: F. S. de Boer, M. M. Bonsangue, S. Graf, W. P. de Roever (Eds.), Formal Methods for Components and Objects, First International Symposium, FMCO 2002, Leiden, The Netherlands, November 5-8, 2002, Revised Lectures, 2002, pp. 361--379.