Saavedra, Alexander ; Galvis, Nataly Alejandra ; Castaneda, Mónica... L. Qoaider and D. Steinbrecht, "Photovoltaic systems: A cost competitive option to supply energy to off-grid agricultural communities in arid regions," Appl. Energy, vol. 87, no. 2, pp. 427–435, 2010..
,
2021