1. Abelson, P. H. & T. C. Hoering, 1961. Carbon isotope fractionation in formation of amino acids by photosynthetic organisms. Proceedings of the National Academy of Sciences United States of America 47(5): 623–632.
2. Anderson, M. J., R. N. Gorley & K. R. Clarke, 2008. PERMANOVA + for PRIMER: Guide to Software and Statistical Methods. PRIMER-E, Plymouth.
3. ASCOBANS, 2009. Report of ASCOBANS/HELCOM small cetacean population structure workshop. In EvP. G. H. & J. Teilman (eds), ASCOBANS, Bonn, Germany.
4. Bearzi, G. & C. M. Fortuna, 2006. Common bottlenose dolphin Tursiops truncatus (Meditarranean subpopulation). In Reeves, R. R. & G. Notarbartolo-di-Sciara (eds), The Status and Distribution of Cetaceans in the Black Sea and Mediterranean Sea. UICN Centre for Mediterranean Cooperation, Málaga: 64–73.
5. Bearzi, G., E. Politi, S. Agazzi, S. Bruno, M. Costa & S. Binizzoni, 2005. Occurrence and present status of coastal dolphins (Delphinus delphis and Tursiops truncatus) in the eastern Ionian Sea. Aquatic Conservation Marine and Freshwater Ecosystems 15: 243–257.