Evolution of polycyclic aromatic hydrocarbons (PAHs) and heavy metals in sludge samples from conventional activated sludge wastewater treatment plants

1. Villar, P.
2. Villar, M.
3. Callejón, M.
4. Pérez, J.L.
5. Jiménez, J.C.
6. Alonso, E.
7. Guiraúm, A.