{"id":"001074994","type":"book","title":"The Frisian trade in the dark ages","publisher-place":"Rotterdam","pages":"7-15","container-title":"Rotterdam Papers 7. A contribution to medieval archaeology. Teksten van lezingen gehouden tijdens het symposium Handel, handelsplaatsen en handelswaar vanaf de vroege middeleeuwen in de Lage Landen. Rotterdam, 2-3 november 1990","author":[{"family":"Lebecq","given":"Stéphane"}],"issued":{"raw":"1992"}}