Light-front versus Bethe-Salpeter forms of two nucleon amplitudes
  We discuss the relation between the two nucleon Bethe-Salpeter amplitude and the light front wave functions. Both approaches provide a covariant description for the deuteron bound state and the two nucleon scattering state. A comparison is done for the spin-orbit functions as well explicit integrals are given on the basis of the Nakanishi integral representation method. 
S.G. Bondarenko, V.V. Burov (JINR Dubna), M. Beyer (U Rostock), S.M.   Dorkin (U Vladivostok)