Wolf, P.U., P.W. Schindler, H. Berthou, and C.K. Jørgensen. 1977. “X-Ray Induced Photo-Electron Spectrometric Evidence for Heavy Metal Adsorption by Molybdenum Disulfide from Aqueous Solution”. CHIMIA 31 (6): 223. https://doi.org/10.2533/chimia.1977.223.