On Electroweak Matching Conditions for Top Pair Production at Threshold
  We determine the real parts of electroweak matching conditions relevant for top quark pair production close to threshold in e+e- annihilation at next-to-next-to-leading logarithmic (NNLL) order. Numerically the corrections are comparable to the NNLL QCD corrections. 
A. H. Hoang, C. J. Reisser (Munich, Max Planck Inst.)