1. Pan-European dialogue between cruise operators, ports and coastal tourism stakeholders, Conference summary by the European Commission, Brussels, 5 and 6 March 2015, 3;AAVV,2015
2. Optimal waste management - high standards of waste management;AIDA Cruise,2019
3. Change theories drift conventional tourism into ecotourism;Aljerf;Acta Technica Corviniensis - Bulletin of Engineering,2015
4. Plastic debris in the world's oceans;Allsopp,2005
5. Environmental impacts of consumption of Australian red wine in the UK;Amienyo;Journal of Cleaner Production,2014