Actes du Colloque international tenu à Gilleleje (Danemark), 24-30 août 1996 - Google Books

http://books.google.de/books?id=lQ6AhnGOj2MC&pg=PA103&lpg=PA103&dq=h%C3%BClsede+posteburg&source=bl&ots=gcBUpQvKfg&sig=5UU0Ee048

Thirty papers from castellologists from all parts of Europe presented at the 1996 meeting in Gilleleje in Denmark: texts in English, French or German.