3D Interactive Augmented Reality in Early Stages of Product Design. - Pedro Santos 002; Holger Graf; Timo Fleisch; André Stork (HCI (4), 2003)

Constraint Stroke-Based Oversketching for 3D Curves. - Timo Fleisch; Florian Rechel; Pedro Santos 002; André Stork (SBM, 2004)

Stroke-Input Methods for Immersive Styling Environments. - Timo Fleisch; Gino Brunetti; Pedro Santos 002; André Stork (SMI, 2004)