The black layer of Middle Palaeolithic combustion structures. Interpretation and archaeostratigraphic implications

1. Mallol, C.
2. Hernández, C.M.
3. Cabanes, D.
4. Sistiaga, A.
5. Machado, J.
6. Rodríguez, T.
7. Pérez, L.
8. Galván, B.