On the Spin Correlations of Final Leptons Produced in the Annihilation Processes $E^+ E^- \To \Mu^+ \Mu^-, \Tau^+ \Tau^-$ and in the High-Energy Two-Photon Processes $\Gamma \Gamma \To E^+ E^-, \Mu^+ \Mu^-, \Tau^+ \Tau^-$

doi 10.22323/1.321.0001