The user-unix dialogue: a novel integrated approach to enhancing the operating system interface. - Pierre Lefebvre; G. Duncan; Frank Poirier (EUROSPEECH, 1991)

A Multimodal Approach to Man-Machine Dialogue with the Unix Operating System. - Pierre Lefebvre; Frank Poirier; G. Duncan (Engineering for Human-Computer Interaction, 1992)

Speech interface for a man-machine dialog with the unix operating system. - Pierre Lefebvre; Frank Poirier; G. Duncan (ICSLP, 1992)

Speaking with computers: a multimodal approach. - Pierre Lefebvre; G. Duncan; Frank Poirier (EUROSPEECH, 1993)