Stelzer, B., Burwitz, V., Audard, M., Güdel, M., Ness, J. U., Grosso, N., Neuhäuser, R., Schmitt, J. H. M. M., Predehl, P., & Aschenbach, B. (2002). Simultaneous X-ray spectroscopy of YY Gem with Chandra and XMM- Newton. Astronomy & Astrophysics, 392(2), 585-598.