Professor Francisco J Garcia-Vidal, Universidad Autónoma de Madrid, Spain
Dr Arno Simon, Bruker Optik GmbH, Germany
Dr Eeva-Liisa Lakomaa, Vaisala Oyj (Sensor Research), VAISALA, Finland
Dr Norbert Neumann, InfraTec, Germany
Dr Lukas Emmenegger, EMPA, Laboratory for Air Pollution and Environmental Technologies, Switzerland