Sykutera, D., P. Szewczykowski, M. Roch, Ł. Wajer, M. Grabowski, and M. Bieliński. 2021. “Effect of Nitrogen Content on Physical Properties of Glass Fiber Reinforced Polyamide 6 Prepared by Microcellular Injection Molding”. Polimery 63 (11-12):743-49. https://doi.org/10.14314/polimery.2018.11.1.