Here are some books, as promised earlier.
Das Holzbau-Buch by Adolf Opderbecke.
Google books:
http://books.google.com/books?id=FAI0i7h...p;q&f=falseDas Zimmermannsbuch by Theodor Krauth and Franz Sales Meyer, 1895
Both are in German. Look them up on Amazon.de and you will be shown many other related books