Reflectance Transformation Imaging Systems for Ancient Documentary Artefacts. - Graeme Earl; Philip James Basford; Alexander Bischoff; Alan K. Bowman; Charles Crowther; Jacob Dahl; Michael Hodgson; Leif Isaksen; Eleni Kotoula; Kirk Martinez; Hembo Pagi; Kathryn E. Piquette (EVA, 2011)