Multiple context planning within a truth-maintenance system. - A. D. Bray; Chris J. Hinde; P. J. Herbert; Darrel M. Temple; D. Round (Knowl. Based Syst., 1993)

Multiple Worlds: An Approach to Multimedia Resource Management Using Truth Maintenance. - A. D. Bray; James L. Alty (Interact. Comput., 1994)