C. Yao, Y. Yu, S. Shou, и X. Li. WWW '08: Proceeding of the 17th international conference on World Wide Web, стр. 999--1008. New York, NY, USA, ACM, (2008)
R. Goldman, и J. Widom. In Proceedings of the Workshop on Query Processing for Semistructured Data and Non-Standard Data Formats, 97, стр. 436--445. (1999)
M. Garofalakis, A. Gionis, R. Rastogi, S. Seshadri, и K. Shim. SIGMOD '00: Proceedings of the 2000 ACM SIGMOD international conference on Management of data, 29, стр. 165--176. New York, NY, USA, ACM Press, (июня 2000)