Niedźwiedź, Malwina Julita, Małgorzata Gil, Mateusz Gargol, Wiesław Marian Podkościelny, and Paweł Mergo. 2019. “Determination of the Optimal Extrusion Temperature of the PMMA Optical Fibers”. Photonics Letters of Poland 11 (1):7-9. https://doi.org/10.4302/plp.v11i1.889.