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Harhoff, Dietmar, Mueller, Elisabeth and Van Reenen, John ORCID: 0000-0001-9153-2907 (2014) What are the channels for technology sourcing? Panel data evidence from German companies. Journal of Economics and Management Strategy, 23 (1). 204 - 224. ISSN 1058-6407
Harhoff, Dietmar, Mueller, Elisabeth and Van Reenen, John ORCID: 0000-0001-9153-2907 (2013) What are the channels for technology sourcing? Panel data evidence from German companies. CEP Discussion Papers (1193). London School of Economics and Political Science. Centre for Economic Performance, London, UK.
Mueller, Elisabeth and Spitz, Alexandra (2002) Managerial ownership and firm performance in German small and medium-sized enterprises. CEPDP (528). London School of Economics and Political Science. Centre for Economic Performance, London, UK. ISBN 0753015498