@article {25150,
	title = {Adsorption of Radium-226 by Soils in the presence of Ca -ions: Specific Adsorption (II)},
	journal = {Chemosphere},
	volume = {8},
	year = {1979},
	pages = {293-299},
	author = {J.S. Nathwani and C.R. Phillips}
}
