Harhoff, D. (1996). Are there financing constraints for R&D and investment in German manufacturing firms? ZEW.
Chicago-Zitierstil (17. Ausg.)Harhoff, Dietmar. Are There Financing Constraints for R&D and Investment in German Manufacturing Firms? Mannheim: ZEW, 1996.
MLA-Zitierstil (9. Ausg.)Harhoff, Dietmar. Are There Financing Constraints for R&D and Investment in German Manufacturing Firms? ZEW, 1996.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.