Saeed Erfanian, Seyed Vahid Sanei Mehri, Ehsan Akhtarkavan,. “Calculating the Area of the Union of Iso-Oriented Rectangles Using MapReduce”. International Journal of Engineering and Computer Science 3, no. 05 (May 28, 2014). Accessed May 3, 2024. http://ijecs.in/index.php/ijecs/article/view/300.