High-performance deep-ultraviolet optics for free-electron lasers, Gatto, A., Thielsch R., Heber J., Kaiser N., Ristau D., Günster S., Kohlhaas J., Marsi M., Trovò M., Walker R., et al. , Applied Optics, Volume 41, Number 16, p.3236-3241, (2002)

Achromatic damage investigations on mirrors for UV - Free electron lasers, Gatto, A., Kaiser N., Thielsch R., Garzella D., Hirsch M., Nutarelli D., De Ninno G., Renault E., Couprie M.E., Torchio P., et al. , Proceedings of SPIE - The International Society for Optical Engineering, Volume 4347, Number 1, p.535-546, (2001)

Towards resistant UV mirrors at 200 nm for free electron lasers: Manufacture - characterizations - degradations tests, Gatto, A., Thielsch R., Kaiser N., Hirsch M., Garzella D., Nutarelli D., De Ninno G., Renault E., Couprie M.E., Torchio P., et al. , Proceedings of SPIE - The International Society for Optical Engineering, Volume 4102, p.261-275, (2000)