Ueda, Y., Fukumoto, M., Yamawaki, A., Soga, Y., Ohtsuka, Y., Brezinsek, S., Hirai, T., Kirschner, A., Kreter, A., Litnovsky, A., Philipps, V., Pospieszczyk, A., Schweer, B., Sergienko, G., Tanabe, T., Sugiyama, K., Ohya, K., Ohno, N., & TEXTOR Team (2009). Effects of tungsten surface conditions on carbon deposition. Journal of Nuclear Materials, 390-391, 44-48. doi:10.1016/j.jnucmat.2009.01.042.