Mechanix: A Sketch-Based Tutoring System for Statics Courses. - Stephanie Valentine; Francisco Vides; George Lucchese; David Turner; Hong-hoe Kim; Wenzhe Li; Julie Linsey; Tracy Hammond (IAAI, 2012)

I Don't Believe My Eyes! Geometric Sketch Recognition for a Computer Art Tutorial. - Danielle Cummings; Francisco Vides; Tracy Hammond (SBIM@Expressive, 2012)

Mechanix: A Sketch-Based Tutoring and Grading System for Free-Body Diagrams. - Stephanie Valentine; Francisco Vides; George Lucchese; David Turner; Hong-hoe Kim; Wenzhe Li; Julie Linsey; Tracy Hammond (AI Mag., 2013)