%% -*-BibTeX-*- @Book{BachemButzGroetschelEtal1981, author = "Achim Bachem and Lothar Butz and Martin Gr{\"o}tschel and Rainer Schrader (Bearb.) and Bernhard Korte (Wiss. Leitung)", title = "Input-Output-Analyse bei unternehmensgr{\"o}{\ss}enspezifischen Fragestellungen", publisher = "Institut f{\"u}r Mittelstandsforschung", address = "Bonn", year = "1981", language = "German", }