Testing annual tree-ring chemistry by X-ray fluorescence for dendroclimatic studies in high-elevation forests from the Spanish Pyrenees

1. Sánchez-Salguero, R.
2. Camarero, J.J.
3. Hevia, A.
4. Sangüesa-Barreda, G.
5. Galván, J.D.
6. Gutiérrez, E.