Media type: E-Article Title: Innovative activity of Polish enterprises : a strategic aspect : the similarity of NACE divisions Contributor: Bielińska-Dusza, Edyta [VerfasserIn]; Hamerska, Monika [VerfasserIn] imprint: 2021 Published in: Journal of entrepreneurship, management and innovation ; 17(2021), 2, Seite 53-98 Language: English DOI: 10.7341/20211723 ISSN: 1734-283X Identifier: Keywords: strategy ; innovation strategy ; sector ; NACE divisions ; cluster analysis ; similarity ; Aufsatz in Zeitschrift Origination: Footnote: Access State: Open Access