Katagiri, Toshiaki and Yahei Koyamada. "Non-Blocking 100 × 100 Optomechanical Matrix Switch" Journal of Optical Communications, 14.4 (1993): 122-127. Retrieved 22 May. 2013, from doi:10.1515/JOC.1993.14.4.122

Katagiri, T. & Koyamada, Y. (1993). Non-Blocking 100 × 100 Optomechanical Matrix Switch. Journal of Optical Communications, 14(4), pp. 121-160. Retrieved 22 May. 2013, from doi:10.1515/JOC.1993.14.4.122

Katagiri, Toshiaki and Yahei Koyamada. 1993. Non-Blocking 100 × 100 Optomechanical Matrix Switch. Journal of Optical Communications. 14(4): 121-160. Retrieved 22 May. 2013, from doi:10.1515/JOC.1993.14.4.122