Single Intermediate Vector Boson production in e+e- collisions at   sqrt(s) = 183 - 209 GeV
  The production of single charged and neutral intermediate vector bosons in e+e- collisions has been studied in the data collected by the DELPHI experiment at LEP at centre-of-mass energies between 183 and 209 GeV, corresponding to an integrated luminosity of about 640 pb^{-1}. The measured cross-sections for the reactions, determined in limited kinematic regions, are in agreement with the Standard Model predictions. 
The DELPHI Collaboration, J. Abdallah, et al