1. Department of Colour and Polymer Chemistry, University of Leeds, Leeds LS2 9JT, UK
2. Global Colour Solutions, 36 Pepper Street, Appleton Thorn, Warrington WA4 4TE, UK
3. Technicare Services Ltd, Bedford Road, South Wigston, Leicester LE18 4TS, UK
4. DigiEye PLC, Cundy Buildings, Frog Island, Leicester LE3 5AG, UK