ACM
ACM Conference on Hypertext and Hypermedia

de Bra, P. M. E., Brusilovsky, P., Eklund, J., Hall, W., & Kobsa, A. (1999). Adaptive Hypermedia: Purpose, Methods, and Techniques. In Proceedings of ACM Conference on Hypertext and Hypermedia 1999 (pp. 199–200). ACM.