Apsaros fortress is located on the southeastern shore of the Black Sea, on an important military and trade route connecting Anatolia with Western Georgia - Lazica, Armenia, and Persia.
- Krzysztof Misiewicz, Radosław Karasiewicz-Szczypiorski, Gonio (georgia). Non-invasive surveys of the Roman fort of Apsaros - 2012 in Światowid Season vol. X (LI)(2012) 2013 - http://www.academia.edu/9257971
- http://caucasus-pictures.blogspot.com/2008/09/gonio-castle.html
- https://www.youtube.com/watch?v=7lb31mgneU8
- http://www.olkas.net/lemmata/18_Gonio-Apsaros