von Keudell, A., Schwarz-Selinger, T., Meier, M., & Jacob, W. (2000). Direct Identification of the Synergism between Methyl Radicals and Atomic Hydrogen during Growth of Amorphous Hydrogenated Carbon Films. Applied Physics Letters, 76, 676-678. Retrieved from http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=APPLAB000076000006000676000001&idtype=cvips&prog=normal.