@book {66516,
	title = {KARST SINKHOLES STABILITY ASSESSMENT IN CHERIA AREA, NE ALGERIA. Com},
	year = {2013},
	month = {2013},
	address = {Batna},
	author = {Y, AZIZI and A, BOUMEZBEUR and Redha, MENANI Mohamed and Fatih, Boucenna}
}
