@techreport{BusseKutscheLeseretal.1999, author = {Busse, Susanne and Kutsche, Ralf-Detlef and Leser, Ulf and Weber, Herbert}, title = {Federated information systems : concepts, terminology, and architectures}, publisher = {Technische Univ. Berlin, Fachbereich 13, Informatik}, address = {Berlin}, pages = {I, 38 Bl.}, year = {1999}, language = {en} }