  We give a short review of the results for four fermion production, which have
been obtained by the semi-analytical approach. The angular degrees of freedom
(typically five or more) are integrated over analytically while the
integrations over invariant fermion pair masses (typically two or more) remain
to be performed by numerical methods. In addition to doubly resonating cross
sections from virtual two boson production, QED corrections and background
contributions were determined. However, a large variety of final state
topologies has not been treated so far.
