Small and medium-sized ports in the TEN-T network and Nexus of Europe's Twin Transition : the way towards sustainable and digital port service ecosystemsGerlitz, Laima; Meyer, ChristopherSustainability2021 / art. 4386, 24 p. : ill https://doi.org/10.3390/su13084386 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS