@misc{Doering_Oscar_(1858–_)_Die_1915,
 author={Doering, Oscar (1858– )},
 copyright={Public Domain},
 address={München},
 journal={Die Kunst dem Volke},
 howpublished={online},
 year={1915},
 publisher={Allgemeinen Vereinigung für christliche Kunst},
 language={ger},
 title={Die deutsche Burg : erstes bis zwanziger Tausend},
 URL={http://www.rcin.org.pl/iae/Content/31233/PDF/WA308_1850_B7167_DEUTSCHE-BURG_I.pdf},
 keywords={early Middle Ages-20th c. -- Germany, history of German architecture, defensive architecture -- Germany, castles -- Germany},
}