Numerically Stable Calculations of Radiative Corrections to   Bremsstrahlung in Electron-Positron Annihilation
  We discuss techniques for obtaining a numerically-stable evaluation of the fully differential cross section for the virtual photon correction to single hard photon bremsstrahlung in two different computational schemes. We also compare the role of finite mass corrections in these schemes. 
S.A. Yost and B.F.L. Ward