1992 · Raimo V. J. Silvennoinen, Kaarlo Nygren, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 3
1992 · Kaarlo Nygren, Raimo V. J. Silvennoinen, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1