1. ASU GIS Data Repository (2016). https://lib.asu.edu/gis/repository.
2. AcreValue (2017). https://www.acrevalue.com/.
3. Agrivoltaic systems. 2017. China: http://www.remtec.energy/en/agrovoltaico/jinzhai-plant/; http://www.scmp.com/comment/insight-opinion/article/1693178/how-farmers-can-help-grow-chinas-solar-power;
4. France: http://conservationmagazine.org/2014/07/agrivoltaics/;
5. Japan: http://www.i-sis.org.uk/Japanese_Farmers_Producing_Crops_and_Solar_Energy.php; http://www.renewableenergyworld.com/articles/2013/10/japan-next-generation-farmers-cultivate-agriculture-and-solar-energy.html; https://solar-sharing-japan.blogspot.com/p/the-system-is-called-solar-sharing-in.html;