Cross Sections for the Exclusive Photon Electroproduction on the Proton and Generalized Parton Distributions. - Jo HS; Girod FX; Avakian H; Burkert VD; Garçon M; Guidal M; Kubarovsky V; Niccolai S; Stoler P; Adhikari KP; Adikaram D; Amaryan MJ; et al. (Physical review letters, 2015)