• Formal and informal macro-regional transport clusters as a primary step in the design and implementation of cluster-based strategiesNežerenko, Olga; Koppel, OttTransport and telecommunication2015 / p. 207-216 : ill https://doi.org/10.1515/ttj-2015-0019 https://www.scopus.com/sourceid/12400154710 https://www.scopus.com/record/display.uri?eid=2-s2.0-84935060757&origin=inward&txGid=27b981847a063eb544172bbe84ebe1e4
• Formal and informal macro-regional transport clusters as primary tools for ensuring stable competitiveness of the Baltic Sea regionNežerenko, Olga; Koppel, OttResearch and technology - step into the future2015 / p. 12-14