Impact assessment of metals on soils from Machu Picchu archaeological site

1. Morillas, H.
2. Gredilla, A.
3. Carrero, J.A.
4. Huallparimachi, G.
5. Gallego-Cartagena, E.
6. Maguregui, M.
7. Marcaida, I.
8. Astete, F.
9. Madariaga, J.M.