1. Vergè-Belmin V., Pichot C., Orial G., Use of petrography for comparison of laser-beam and microsandblasting cleaning techniques, Proceedings of the 4th Workshop: Eurocare-Euromarble (Arles 1994), Forschungbericht 13/94, Bayerisches Landesamt fur Denkmalplege, Zentrallabor.
2. Laser ablation in the artworks restoration: benefits and problems, Proceedings of LASERS 95 (Charleston, USA);Siano,1996
3. Cleaning processes of encrusted marbles by Nd:YAG lasers operating in Free Running and Q-switching regime;Siano;Appl. Opt.,1997
4. Vergès-Belmin V., Comparison of three cleaning methods – microsandblasting, chemical pads and Q-switched YAG laser – on a portal of the cathedral Notre-Dame in Paris, France, in: Kautek W., König E. (Eds.), Lasers in the Conservation of Artworks (LACONA II), Restauratorenblätter (Special Issue), Mayer & Comp., Vienna, 1997, pp. 17–24.
5. Laser based cleaning on stonework at St. Stephan's cathedral, Vienna;Calcagno,1997