@article {29230,
	title = {Coal - M.phlei interaction and its effect on coal cleaning},
	journal = {Tenside Surfactants and Detergents},
	volume = {50},
	year = {2013},
	pages = {414-419},
	author = {Mohamed.A.Abdel-Khalek and Ayman A.El-Midany}
}
