@TECHREPORT{carstensen+1997,
address = {Koblenz},
author = {Carstensen, Martin and Ebert, Jürgen and Winter, Andreas},
institution = {Universität Koblenz-Landau, Institut für Softwaretechnik},
title = {Entity-Relationship-Diagramme und Graphenklassen},
year = {1997}
}