All materials used on this website are copyright. Permission must be sought before they can be reused either privately or commercially.

Please contact Greger Larson (greger.larson [at] in the first instance with any queries regarding copyright and reuse of materials on this website.

Specific copyright attributions

  • Header image. The photo of the Oxford skyline used on our header is courtesy of David Iliff, and licensed under creative commons license CC-BY-SA 3.0.