title: www-udk : a web-based environmental meta-information system rudolf legat , arne koschel , andree keitel , ralf kramer , claudia rolker , ralf nikolai , peter c. lockemann , konrad zirm 1997. authors: nan. venue: sigmod record. year: nan
title: www-udk : a web-based environmental meta-information system ralf kramer , ralf nicholai , arne koschel , claudia rolker , peter lockemann , andree keitel , rudolf legat , konrad tirm 1997. authors: nan. venue: acm sigmod record. year: nan