Source: https://www.researchgate.net/profile/Amjad_Kallel/publication/322317311_Proceedings_of_the_International_Conference_on_Natural_Hazards_and_Geomatics-ICNHG_2013/links/5a53be1fa6fdccf3e2df9122/Proceedings-of-the-International-Conference-on-Natural-Hazards-and-Geomatics-ICNHG-2013.pdf