[en] In the reaction e⁺e/sup /minus// → μ⁺μ/sup /minus// the interference of weak and electromagnetic amplitudes is expected to produce measurable effects at the highest PEP energies in runs with integrated luminosities of order 10³⁸cm/sup /minus/2/. The prediction for μ⁺μ/sup /minus// polar asymmetry and absolute rate, which give g/sub A/² and g/sub V/², respectively, are highly model dependent. The s-dependence of these effects is sensitive to the existence of an intermediate boson with mass in the range below 100 GeV. The use of transverse electron beam polarization should be helpful in sorting out higher order electromagnetic effects. It is of negligible statistical advantage in determining the weak-electromagnetic interference terms. More difficult experiments requiring longitudinal beam polarization or the measurement of muon helicity could determine the weak V-A interference terms and provide a test of μ--e universality. 2 refs., 6 figs