title: the ecobase project : database and web technologies for environmental information systems. authors: asterio k. tanaka , patrick valduriez. venue: sigmod record. year: 2001
title: uis-management of data and services in the environmental information systems of baden-w &#252; rttemberg. authors: wolf-fritz riekert , roland mayer-f &#246; ll , gerlinde wiest. venue: acm sigmod record. year: 1997