@book{BachemButzGroetscheletal.1981, author = {Bachem, Achim and Butz, Lothar and Gr{\"o}tschel, Martin and (Bearb.), Rainer and Leitung), Bernhard}, title = {Input-Output-Analyse bei unternehmensgr{\"o}ßenspezifischen Fragestellungen}, publisher = {Institut f{\"u}r Mittelstandsforschung}, address = {Bonn}, year = {1981}, language = {en} }