@article {85556,
	title = {Mathematical Formulation for Groundwater Pollution in Leaky Aquifers},
	journal = {Journal of Engineering and Applied Sciences},
	volume = {38},
	year = {1991},
	pages = {721-733},
	author = {A. M. El-Khashab and N. A. Abdel-Halim and A. E. Hassan}
}
