Investigation of N-N* Electromagnetic Form Factors within a Front-Form   CQM
  The helicity amplitudes for the transitions $N-S_{11}$ and $N-S_{31}$ are presented. The amplitudes have been obtained within our front-form CQM model, based on hadron eigenstates of a relativistic mass operator and CQ current with Dirac and Pauli form factors. 
E. Pace (Rome University), G. Salme` (INFN-Rome) and S. Simula   (INFN-Rome)