1. High-Energy Photoproduction of Neutral Rho Mesons
2. Proc. Intern. Symp. on Electron and photon interactions at high energies;Cambridge,1965
3. and B.T. Feld, private communication.
4. Aachen-Berlin-Bonn-Hamburg-Heidelberg-München Bubble Chamber Collaboration, Nuovo Cimento, to be published.
5. Proc. Intern. Symp. on Electron and photon interaction at high energies;Elsner,1965