  We show a relationship between elastic electron scattering observables and
the elastic neutrino cross section that provides a straightforward
determination of the latter from experimental data of the former and relates
their uncertainties. An illustration of this procedure is presented using a
Hartree-Fock mean field for the nuclear structure of a set of even-even nuclear
targets, using the spectra of the neutrinos produced in pion decay at rest. We
also analyze the prospects to measure the incoherent axial contribution to the
neutrino elastic scattering in odd targets.
