April 9, 2024 Ackermann, O., H. M. Zhevelev and T. Svoray. 2019. Agricultural systems and terrace pattern distribution and preservation along climatic gradient: From sub-humid mediterranean to arid conditions. Quaternary International 502(Part B):319-326. Home » Ackermann, O., H. M. Zhevelev and T. Svoray. 2019. Agricultural systems and terrace pattern distribution and preservation along climatic gradient: From sub-humid mediterranean to arid conditions. Quaternary International 502(Part B):319-326.