Murugappan Palaniappan, Nicole Yankelovich, George W. Fitzmaurice, Anne Loomis, Bernard J. Haan, James H. Coombs, Norman K. Meyrowitz. The Envoy Framework: An Open Architecture for Agents. ACM Trans. Inf. Syst., 10(3):233-264, 1992. [doi]
Abstract is missing.