Randall S R, Sherman D M, Ragnarsdottir K V. An extended X-ray abadsorption fine structure spectroscopy investigation of cadmium adsorption on cryptomelane (KMn8O16) [J]. Chemical Geology, 1998,151:95-106.
Wagner J. Use of cationic surfactants to modify soil surfaces to promote sorption and migration of hydrophobic organic compounds[J]. Environ. Sci. Technol., 1994,28:231-237.