@inproceedings { campos11,
	booktitle = {Human-Computer Interaction – INTERACT 2011},
	keywords = {Companion design; persona ;companion evaluation; long-term;Intelligent Virtual Agents;Affective Computing;},
	pages = {73-90},
	publisher = {Springer Berlin / Heidelberg},
	series = {Lecture Notes in Computer Science},
	title = {A Personal Approach: The Persona Technique in a Companion’s Design Lifecycle},
	volume = {6948},
	year = {2011},
	author = {Joana Campos and Ana Paiva}
}