Szczepanek, Jan, Tomasz M. Kardaś, and Yuriy Stepanenko. “Group Delay Measurements of Ultrabroadband Pulses Generated in Highly Nonlinear Fibers”. Photonics Letters of Poland 8, no. 4 (December 31, 2016): pp. 107–109. Accessed May 4, 2024. https://photonics.pl/PLP/index.php/letters/article/view/8-39.