Die deutschen ländlichen Siedlungen des mittelpolnischen Warthebruchs
by Albert Breyer
First published 1937
in: Deutsche Wissenschaftliche Zeitschrift für Polen; Heft 34; 1938
After Albert Breyer had lost his job at the German school in Sompolno he concentrated upon the publication of the results of his studies of local history.
In this publication Breyer describes the history of the ethnic German settlers in the area near the river Warthe.