Authors: Madrid L., Diaz-Barrientos E., Ruiz-Cortes E., Reinoso R., Biasioli M., Davidson C.M., Duarte A.C., Grcman H., Hossack I., Hursthouse A.S., Kralj T., Ljung K., Otabbong E., Rodrigues S., Urquhart G.J., Ajmone-Marsan F.
Title: Variability in concentrations of potentially toxic elements in urban parks from six European cities