  The cross-sections for the production of single charged and neutral
intermediate vector bosons were measured using integrated luminosities of 52
pb^{-1} and 154 pb^{-1} collected by the DELPHI experiment at centre-of-mass
energies of 182.6 GeV and 188.6 GeV, respectively. The cross-sections for the
reactions were determined in limited kinematic regions. The results found are
in agreement with the Standard Model predictions for these channels.
