Schneider, W. D.Luengo, C. A.2007-06-202007-06-202007-06-20197810.1002/er.4440020203https://infoscience.epfl.ch/handle/20.500.14299/8779Characterization of Coal Ash with X-Ray Photoelectron-Spectroscopy (Esca)text::journal::journal article::research article