  We study, at leading order in the large number of colours expansion and
within the Resonance Chiral Theory framework, the odd-intrinsic-parity $e^+ e^-
\rightarrow \pi^+ \pi^- (\pi^0, \eta)$ cross-sections in the energy regime
populated by hadron resonances, namely $3 \, m_{\pi} \lsim E \lsim 2 \,
\mbox{GeV}$. In addition we implement our results in the Monte Carlo generator
PHOKHARA 7.0 and we simulate hadron production through the radiative return
method.
