Tillage Long-Term Effects on Soil Organic Matter Humification and Humic Acids Structural Changes in Regosol Profiles Typical of an Arid Region

1. Ben Mahmoud, I.
2. Mbarek, H.B.
3. Sánchez-Bellón, Á.
4. Medhioub, M.
5. Moussa, M.
6. Rigane, H.
7. Gargouri, K.