Back-end manager: an interface between a knowledge-based front end and its application subsystems. - Albert Prat; Jesús Lorés; Paul Fletcher; Josep M. Catot (Knowl. Based Syst., 1990)

A Separable Architecture for the Construction of Knowledge Based Front Ends. - Albert Prat; Josep M. Catot; Jesús Lorés; Paul Fletcher; J. Galmes; K. Sanjeevan (AI Commun., 1992)

Using the FOCUS architecture for developing knowledge-based front ends: a KBFE for forecasting. - Albert Prat; Josep M. Catot; Paul Fletcher; Jesús Lorés; Richard Southwick (Knowl. Based Syst., 1993)

Investigation of Unmanned Aerial Vehicle Gesture Perceptibility and Impact of Viewpoint Variance*. - Paul Fletcher; Angeline Luther; Brittany A. Duncan; Carrick Detweiler (ICRA, 2021)

Examining Distance in UAV Gesture Perception. - Karissa Jelonek; Paul Fletcher; Brittany A. Duncan; Carrick Detweiler (IROS, 2022)

Predicting Visual Differentiability for Unmanned Aerial Vehicle Gestures. - Paul Fletcher; Angeline Luther; Carrick Detweiler; Brittany A. Duncan (IEEE Robotics Autom. Lett., 2022)