Schmid, A., Herrmann, A., Rohde, V., Maraschek, M., Müller, H. W., & ASDEX Upgrade Team (2007). Magnetically driven filament probe. Review of Scientific Instruments, 78: 053502. Retrieved from http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=RSINAK000078000005053502000001&idtype=cvips.