Scientific journal publication Spatial mapping of ozone and SO2 trends in Europe. Denby, B.; Sundvor, I.; Cassiani, M.; de Smet, P.; de Leeuw, F.; Horálek, J. Publication details Journal: Science of the Total Environment, 408, 4795–4806, 2010 DOI: 10.1016/j.scitotenv.2010.06.021