A study on the aging process of polystyrene thin films treated under DC pulsed discharges conditions in oxygen and argon-oxygen mixturesF. Clément, B. Held, N. Soulem and H. MartinezEur. Phys. J. AP, 21 1 (2003) 59-66DOI: https://doi.org/10.1051/epjap:2002102