This text is my master thesis defended at Ludwig Maximilian University of Munich in 2016. It has been published by the Bavarian State Library in 2017. Please find the full text (in German) here:
The Resettlement of Bulgaria’s German Minority 1938-1944
In 1938 about 2000 ethnic Germans lived in what was then the Kingdom of Bulgaria. By the end of 1944 only about 200 were left. The rest had been resettled to the German Reich.