1. Badue, C.S., Baeza-Yates, R., Ribeiro-Neto, B.A., Ziviani, A., Ziviani, N.: Analyzing imbalance among homogeneous index servers in a web search system. Inf. Process. Manage. 43(3), 592–608 (2007)
2. Badue, C.S., Baeza-Yates, R., Ribeiro-Neto, B.A., Ziviani, A., Ziviani, N.: Modeling performance-driven workload characterization of Web search systems. In: Yu, P.S., Tsotras, V.J., Fox, E.A., Liu, B. (eds.) CIKM, Arlington, Virginia, USA, November 2006, pp. 842–843. ACM, New York (2006)
3. Baeza-Yates, R., Castillo, C., Junqueira, F., Plachouras, V., Silvestri, F.: Challenges in distributed information retrieval (invited paper). In: ICDE (2007)
4. Baeza-Yates, R., Gionis, A., Junqueira, F., Murdock, V., Plachouras, V., Silvestri, F.: Design trade-offs for search engine caching. TWEB 2(4) (2008)
5. Baeza-Yates, R., Gionis, A., Junqueira, F., Plachouras, V., Telloli, L.: On the feasibility of multi-site Web search engines. In: ACM CIKM 2009, Hong Kong, China, November 2009, pp. 425–434 (2009)