Rademacher, Michael (2006). "Provinz Westpreußen, Kreis Löbau/Neumark" [German administrative history of the province of West Prussia, district of Löbau/Neumark]. Deutsche Verwaltungsgeschichte (in German). Archived from the original on 2013-07-12.
Rademacher, Michael (2006). "Provinz Westpreußen, Kreis Löbau/Neumark" [German administrative history of the province of West Prussia, district of Löbau/Neumark]. Deutsche Verwaltungsgeschichte (in German). Archived from the original on 2013-07-12.