Efthymiou, Marina (2016) Challenges in aviation governance: implementation of Single European Sky and EU Emissions Trading Scheme. Doctoral thesis, University of West London.

Kantareva, Mariya, Angelova, Anna, Iliev, Lazar and Efthymiou, Marina (2015) ICAO action plan on emissions reduction: Republic of Bulgaria. Technical Report. ICAO-Civil Aviation Administration Republic of Bulgaria.

Efthymiou, Marina and Papatheodorou, Andreas (2015) Intermodal passenger transport and destination competitiveness in Greece. Anatolia: An International Journal of Tourism and Hospitality Research, 26 (3). pp. 459-471. ISSN 1303-2917