1. Broder, A. (2002). A taxonomy of Web search. SIGIR Forum, 36(2), 3–10.
2. Burges, C., Shaked, T., Renshaw, E., Lazier, A., Deeds, M., Hamilton, N., & Hullender, G. (2005). Learning to rank using gradient descent. In: 22nd International Conference on Machine Learning, pp. 89–96, Bonn, Germany, August.
3. Ben, C., & Bennett, P. N. (2008). Evaluation measures for preference judgments. In: 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, pp. 685—686, Singapore.
4. Carterette, B., Bennett, P., Chapelle, O. (2008). A test collection of preference judgments. In: SIGIR 2008 Workshop on Beyond Binary Relevance: Preferences, Diversity, and Set-Level Judgments, Singapore. July 2008.
5. Carterette, B., Bennett, P. N., Chickering, D. M., & Dumais, S. T. (2008). Here or there: Preference judgments for relevance. Computer Science Department Faculty Publication Series 46, University of Massachusetts Amherst.