Hardy Greens : Encyclopedia of German League Football. Volume 1: From the Crown Prince to the Bundesliga. 1890 to 1963. German championship, Gauliga, Oberliga. Numbers, pictures, stories. AGON-Sportverlag, Kassel 1996, ISBN 3-928562-85-1 .
Hardy Greens: Encyclopedia of German League Football. Volume 7: Club Lexicon . AGON-Sportverlag, Kassel 2001, ISBN 3-89784-147-9 .