Kendrick, D. T., Anglo-Saxon Art, London, 1938; Jessup, R., Anglo-Saxon Jewellery, 1950; Evison, V. I., The Fifth Century Invasions South of the Thames, London, 1965; Wilson, D. M., Anglo-Saxon Ornamental Metalwork, British Museum, London, 1964; Wilson, D. M., Anglo-Saxon Art, New York, 1984; Hubert, J., Europe in the Dark Ages, London, 1969; and thirty-two others of similar interest (38)