1. Department SBG, Institute for Materialresearch (IMO), Limburg University, Universitaire Campus, B-3590 Diepenbeek, Belgium
2. ExxonMobil Chemical, 4500 Bayway Drive, Baytown, Texas 77520-9728
3. ExxonMobil Chemical Europe, Hermeslaan 2, B-1831 Machelen, Belgium