INVESTIGATION OF PHOTON-PHOTOPN INTERACTIONS BY e+ e– BEAMS COLLIDING WITH 2.7 GeV TOTAL ENERGY F. CERADINI, M. CONVERSI, S. D'ANGELO, M. L. FERRER, L. PAOLUZI, R. SANTONICO, G. BARBIELLINI, S. ORITO, T. TSURU et R. VISENTINJ. Phys. Colloques, 35 C2 (1974) C2-9-C2-11DOI: https://doi.org/10.1051/jphyscol:1974202
