Jóźwicki M Łukasz, Gargol M, Gil-Kowalczyk M, Mergo P. Commercially available granulates PMMA and PS - potential problems with the production of polymer optical fibers. Photon.Lett.PL [Internet]. 2020 Sep. 30 [cited 2023 Jun. 6];12(3):79-81. Available from: https://photonics.pl/PLP/index.php/letters/article/view/12-27