  A high-resolution study of the (e,e'p) reaction on Helium-4 was carried out
at the Institut fuer Kernphysik in Mainz, Germany. The measurements were done
in parallel kinematics (momentum transfer q=685 MeV/c, energy transfer
omega=334 MeV) at different incident beam energies in order to enable the
Rosenbluth separation of the longitudinal and transverse response functions.
