@techreport{Luegger1998, author = {Joachim L{\"u}gger}, title = {Wo ist der Opac der virtuellen Bibliothek?- Strukturen des Kooperativen Bibliotheksverbundes}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {TR-97-10}, language = {deu}, year = {1998} }