Phenomenological analysis of the CLAS data on double charged pion photo   and electro- production
  First comprehensive data on the evolution of nucleon resonance photocouplings with photon virtuality Q^2 are presented for excited proton states in the mass range from 1.4 to 2.0 GeV. N^* photocouplings were determined in phenomenological analysis of CLAS data on 2 pi photo and electroproduction within the framework of the JLAB-MSU phenomenological model. 
V. I. Mokeev, V. D. Burkert, L. Elouadrhiri, A. A. Boluchevsky, G. V.   Fedotov, E. L. Isupov, B. S. Ishkhanov, N. V. Shvedunov