J Duplissy, MB Enghoff, KL Aplin (STFC Rutherford Appleton Lab.), F Arnold, H Aufmhoff, M Avngaard, U Baltensperger, T Bondo, R Bingham (STFC Rutherford Appleton Lab.), K Carslaw, J Curtius, A David, B Fastrup, S Gagne, F Hahn, RG Harrison, B Kellett (STFC Rutherford Appleton Lab.), J Kirby, M Kulmala, L Laakso, A Laaksonen, M Lockwood (STFC Rutherford Appleton Lab.), J Makela, V Makhmutov, ND Marsh, T Nieminen, A Onnela, E Pedersen, JOP Pedersen, J Polny, U Reichl, JH Seinfeld, M Sipila, Y Stozhkov, F Stratmann, H Svensmark, J Svensmark, R Veenhof, PE Wagner, G Wehrle, E Weingaertner, H Wex, M Wihelmsson, PM Winkler