Wang, Pengfei, Yuliya Semenova, Yong Li, Qiang Wu, and Gerald Farrell. “A Macrobending Singlemode Fiber Refractive Index Sensor for Low Refractive Index Liquids”. Photonics Letters of Poland 2, no. 2 (June 29, 2010): pp. 67–69. Accessed April 19, 2024. http://photonics.pl/PLP/index.php/letters/article/view/2-23.