Pietrzykowski , M. 2016. Strengthening the Internationalisation and Commercialization of Clusters and Cluster Organisations by Upgrading Managerial Competencies: Selected Cases from Poland and Lithuania. Studia Oeconomica Posnaniensia. 4, 5 (May 2016), 160–183. DOI:https://doi.org/10.18559/SOEP.2016.5.10.