Laser damage threshold of MgF2 thin films by photoacoustic beam deflection, Protopapa, Maria Lucia, Perrone M.R., Piegari A., Masetti E., Ristau D., Quesnel E., and Duparre A. , Proceedings of SPIE - The International Society for Optical Engineering, Volume 3902, Boulder, CO, USA, p.175-181, (2000)

Ultraviolet-graded coatings for lasers: Surface optical performance, Piegari, A., Perrone M.R., and Protopapa Maria Lucia , Thin Solid Films, Volume 373, Number 1-2, p.155-158, (2000)