  Yukawa couplings between Higgs bosons and quarks in the Standard Model (SM)
and supersymmetric theories can be measured in the processes e+e- -> Q\bar{Q} +
Higgs. The cross sections and Higgs energy distributions of these processes in
the SM and minimal supersymmetric model have been determined including the
complete set of next-to-leading order QCD corrections for all channels.
