1. Newsletter of ΤΕΕ (11 October 1999), “Study on the possibility of the development of Alternative Forms of Tourism on the islands of Nisyros and Tilos”, no. of issue 2070.

2. Newspaper “ΤΑ ΝΕΑ” (15th July 2005), “Holidays, 100 summer destinations – Tilos”, no. of issue 18289, Article code: A18289N601, Page: Ν60.

3. Theodorou G., 1983, “The fossilized pygmy elephants of Charkadio cave in Tilos”, Athens.

4. Koutelakis Har., 1979, “Historic file of Tilos island”, Athens.

5. Mouzakis Stelios, 1987, Annals of Dodekanese 12, “Byzantine and post Byzantine churches of Tilos”. 

6. Proposal LIFE – NATURE (2004), “Tilos: Conservation management of an island SPA”, Commission of the European Union, Municipality of Tilos.

7. Dr Koutelakis M. Haris, “Tilos”, Athens.

8. International Congress, 2001, “The World of Elephants”, Rome.

9. Theodorou G.E., Symeonides N.K., 2001, “The excavations of the last ten years at Charkadio cave on Tilos Island, Dodekanese, Greece”, Department of Historical Geology and Palaeontology, University of Athens, Athens.

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