@inproceedings{HCI-SEC-1997-Perez-QuinonesS,
	author        = "Manuel A. Pérez-Quiñones and John L. Sibert",
	booktitle     = "{Proceedings of the Seventh International Conference on Human-Computer Interaction. Volume 2: Social and Ergonomic Considerations}",
	isbn          = "0-444-82183-X",
	pages         = "355--358",
	publisher     = "{Elsevier}",
	title         = "{Modular Dialogue Units: A Software Architecture for Programming Human-Computer Dialogues}",
	year          = 1997,
}