Valentine, S., Vides, F., Lucchese, G., Turner, D., Kim, H.- hoe, Li, W., Linsey, J., & Hammond, T. (2012). Mechanix: A Sketch-Based Tutoring System for Statics Courses. Proceedings of the AAAI Conference on Artificial Intelligence, 26(2), 2253-2260. https://doi.org/10.1609/aaai.v26i2.18966