Farzaneh-Gord, Mahmood, et al. “New Method for Applying Solar Energy in Greenhouses to Reduce Fuel Consumption”. International Journal of Agricultural and Biological Engineering, vol. 6, no. 4, Dec. 2013, pp. 64-75, https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/716.