Reference

T. Stöllner, Horst Aspöck, N. Boenke, C. Dobiat, Dieter Hubich, W. Groenman-van Waateringe, W. Irlinger, K. Kurzynski (2003): The economy of Dürnberg-bei-Hallein: An iron age salt-mining centre in the Austrian alps – T. Antiquaries J. – 83: 94 - 123.