title: research activities in database management and information retrieval at the university of illinois at chicago. authors: i cruz , a khokhar , b liu , a sistla , o wolfson , c yu. venue: sigmod record. year: 2002
title: database research activities at the university of wisconsin. authors: h boral , dj dewitt , rh katz , a klug. venue: acm sigmod record ,. year: 1982.0