1. Kako SI, Isobe A, Magome S (2010) Sequential monitoring of beach litter using webcams. Mar Pollut Bull 60:775–779
2. Seino S, Kojima A, Hinata H, Magome S, Isobe A (2009) Multi-Sectoral research on East China Sea beach litter based on oceanographic methodology and local knowledge. J Cost Res 56:1289–1292
3. UNEP (2011) Assessment of the status of marine litter, in the Mediterranean United Nations Environmental Program, Athens
4. WorldBank (2012) What a waste. A global review of solid waste management. Urban Developers Series Knowledge Paper (No 68135)
5. Plastics Europe (2012) Plastics – the facts 2012. An analysis of European plastic production, demand and waste data for 2011. http://www.plasticseurope.org/documents/document/20121120170458-final_plasticsthefacts_nov2012_en_web_resolution.pdf