Characterization of ancient lipids in prehistoric organic residues: Chemical evidence of livestock-pens in rock-shelters since early neolithic to bronze age

1. Gea, J.
2. Sampedro, M.C.
3. Vallejo, A.
4. Polo-Díaz, A.
5. Goicolea, M.A.
6. Fernández-Eraso, J.
7. Barrio, R.J.