Bieliński, D. M., C. Ślusarczyk, J. Jagielski, and P. Lipiński. “Modification of Polyethylene by High Energy Ion or Electron Beam - Structural, Micromechanical and Conductivity Studies of the Surface Layer”. Polimery, vol. 52, no. 5, Aug. 2022, pp. 329-35, http://ichp.vot.pl/index.php/p/article/view/1422.