Measurement of the Pion Form Factor in the Energy Range 1.04-1.38 GeV   with the CMD-2 Detector
  The cross section for the process $e^+e^-\to\pi^+\pi^-$ is measured in the c.m. energy range 1.04-1.38 GeV from 995 000 selected collinear events including 860000 $e^+e^-$ events, 82000 $\mu^+\mu^-$ events, and 33000 $\pi^+\pi^-$ events. The systematic and statistical errors of measuring the pion form factor are equal to 1.2-4.2 and 5-13%, respectively. 
CMD-2 Collaboration: V. M. Aulchenko, et al