Addendum To Our Paper: "Radiative Tau Decays With One Pseudoscalar   Meson"
  In a previous paper we have calculated the decay $\tau\to\pi\nu_\tau\gamma$. We used a given relative sign between the internal bremsstrahlung and the structure dependent radiation, which has been used by several other authors before. However, we believe that there are good arguments why the opposite sign is the physical one. We briefly discuss these arguments and then investigate how the predictions for the decay $\tau\to\pi\nu_\tau\gamma$ are affected by this sign. 
Roger Decker and Markus Finkemeier