1. Asmus, J. et al. ‘Surface Morphology of Laser-cleaned Stone’,LithoclastiaNo 1, 1976, pp. 23–46.
2. Lacona I. Workshop on ‘Lasers in the Conservation of Artworks’, 4–6 October 1995, Heraklion, Crete, Greece. Organized by the Foundation for Research and Technology—Hellas (FORTH), the University of Crete and the National Gallery of Athens.
3. Lacona II. The 2nd International Conference on ‘Lasers in the Conservation of Artworks’, 23–25 April 1997, The Conservation Centre, Liverpool, Great Britain. Organized by the National Museums and Galleries on Merseyside, Liverpool.