AL-BAYATI, A. A. Fractional Free Volume Dependence of Neutron-Irradiated Polystyrene (PS) Measured by Positron Method. Iraqi Journal of Physics, Baghdad, Iraq., v. 7, n. 10, p. 35–39, 2009. Disponível em: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/880. Acesso em: 23 dec. 2024.