Production mechanisms for nonminimal Higgs bosons at ane+e−collider

We discuss mechanisms for the production of the Higgs bosons of the minimal supersymmetric model at an $e^{+}$ $e^{\mathrm{-}}$ collider. In particular, we focus on those Higgs bosons that are predicted to have zero or weak couplings to vector-boson pairs, and hence cannot be produced by the standard mechanisms.