Liang, C., Wang, S., Wu, Z., Williams, K., Pursel, B., Brautigam, B., Saul, S., Williams, H., Bowen, K. and Giles, C. 2016. BBookX: Building Online Open Books for Personalized Learning. Proceedings of the AAAI Conference on Artificial Intelligence. 30, 1 (Mar. 2016). DOI:https://doi.org/10.1609/aaai.v30i1.9840.