G. Aad, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, K. Augsten, T. Holý, Z. Hubáček, J. Jakůbek, Z. Kohout et al.: Measurement of the W boson polarization in top quark decays with the ATLAS detector. Journal of High Energy Physics 2012(6), 88 (2012). doi:10.1007/JHEP06(2012)088