Mukesh Singh Boori, et al. “A Remote Sensing and GIS Based Approach for Vulnerability, Exposer and Landscape Trajectories in Olomouc, Czech Republic”. Global Journals of Research in Engineering, vol. 14, no. E4, Mar. 2014, pp. 7-32, https://engineeringresearch.org/index.php/GJRE/article/view/1188.