Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Vagelis Hristidis, Nick Koudas, Yannis Papakonstantinou, Divesh Srivastava. Keyword Proximity Search in XML Trees. IEEE Trans. Knowl. Data Eng., 18(4):525-539, 2006. [doi]