"Structural and Photoelectrical Properties of PZT Thin Films Deposited byPulsed Laser Ablation" I. Boerasu, M. Pereira, M.J.M. Gomes, B. Watts, F. Leccabue, P.M. Vilarinho “Electroceramics VIII”, August 25-28,2002, Roma, Itália. http://www.uniroma2.it/eventi/electroceramics/Frame1.html