Martínez-Carrillo, M., C. Solís, E. Andrade, M. Mondagón G, and B. Méndez. “Capture of Air Particulate Matter and Gaseous Hg$^{0}$ by Ionic Liquids Analyzed by PIXE”. Revista Mexicana De Física, vol. 58, no. 3, Jan. 2012, pp. 258-61, https://rmf.smf.mx/ojs/index.php/rmf/article/view/3918.