Sitemaps
↑ O. Brandman, J. Cho, Hector Garcia-Molina, and Narayanan Shivakumar (2000). "Crawler-friendly web servers". Proceedings of ACM SIGMETRICS Performance Evaluation Review, Volume 28, Issue 2. doi:10.1145/362883.362894。
↑ M.L. Nelson, J.A. Smith, del Campo, H. Van de Sompel, X. Liu (2006). "Efficient, Automated Web Resource Harvesting" (PDF). WIDM'06.
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