Niedźwiedź, Malwina Julita, Małgorzata Gil, Mateusz Gargol, Wiesław Marian Podkościelny, and Paweł Mergo. “Determination of the Optimal Extrusion Temperature of the PMMA Optical Fibers”. Photonics Letters of Poland 11, no. 1 (April 3, 2019): 7–9. Accessed March 5, 2024. https://www.photonics.pl/PLP/index.php/letters/article/view/11-3.