Onn Brandman Junghoo Cho Hector Garcia-Molina Narayanan Shivakumar Crawler-Friendly Web Servers. 9-14 2000 28 SIGMETRICS Performance Evaluation Review 2 http://doi.acm.org/10.1145/362883.362894 db/journals/sigmetrics/sigmetrics28.html#BrandmanCGS00