- Authors: Rodrigues S.M., Ferreira da Silva E., Pereira E., Römkens P.F.A.M, Duarte A.C.
- Title: Soil quality criteria for potentially toxic elements in Portuguese soils in relation to impacts on crops quality and human health effects
- Conference Title: EcoHCC 09 - International Conference on Ecohydrology and Climate Change
- Conference Location: Tomar, Portugal
- Conference Date: 10-12 September
- Year Published: 2009