Together with Prof. Sibylle Heilbrunn, Dr. Aki Harima and Prof. Jörg Freiling have published a new book.
"Refugee Entrepreneurship" is a collection of stories from refugees who have become self employed.
The Weser Kurier has done an article about this case-based topography aswell. You can find it here (in German)
You can find more information about purchasing the book here.