QED bremsstrahlung in decays of electroweak bosons Andrej B. Arbuzov, Renat R. Sadykov and Zbigniew Wa̧s Eur. Phys. J. C, 73 11 (2013) 2625 Published online: 05 November 2013 DOI: 10.1140/epjc/s10052-013-2625-1