1. Positron mobility in polyethylene in the 60–400K temperature range;Brusa;Appl. Phys. A,1995
2. A new view on positronium in polymers;Dauwe;Phys. Lett. A,1998
3. Positronium formation in poly(methyl methacrylate);Dauwe;Phys. Rev. B,2003
4. The temperature dependence of positron lifetimes in solid pivalic acid;Eldrup;Chem. Phys,1981
5. Hirade, T., Wang, C.L., Maurer, F.H.J., Eldrup, M., Pedersen, N.J., 1998. Visible light effect on positronium formation in PMMA at low temperature. In :Abstract Book for the 35th Annual Meeting on Radioisotopes in the Physical Science and Industries, Tokyo, Japan, p. 89.