BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English Ottoman cession (Blue) to Bulgaria in 1915 following Sofia convention. URL: https://commons...
Source OttomanCession1915.png by Minkes under licence CC-BY-SA 4.0 Author Sémhur Minkes Other versions OttomanCession1915.png : English (PNG) OttomanCession1915-fr...
