H.Mahach, B.Benhamou,  Cooling Performance of an Earth to Air Heat Exchanger in Hot Semi-arid Climate: Parametric study  , 6th In. Renewable and Sustainable Energy Conference IRSEC2018 Rabat 5-7 December 2018, IEEEXplore https://ieeexplore.ieee.org/document/8702884 DOI: 10.1109/IRSEC.2018.8702884