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.
Scot Anderson, Peter Z. Revesz. Efficient MaxCount and threshold operators of moving objects. GeoInformatica, 13(4):355-396, 2009. [doi]
Abstract is missing.