@book {67640,
	title = {Evolution des Facies Chimiques des Eaux Souterraines dans da Plaine D\&rsquo;el-Outaya, Biskra, Alg{\'e}rie},
	year = {2009},
	month = {2009},
	address = {Batna, Alger},
	author = {Nafaa, Brinis and Abderahmane, Boudoukha and Larbi, Djabri}
}
