title: the database research group at eth zurich. authors: hans-jörg schek , moira c. norrie , gerhard weikum , stephen blott. venue: sigmod record. year: 1994
title: the database research group at eth zurich. authors: moira c. norrie , stephen m. blott , hans-j &#246; rg schek , gerhard weikum. venue: acm sigmod record. year: 1994