1. Rapporteur talk at the Intern. Conf. on High energy physics;Söding,1979
2. JADE, talk by S. Orito
3. MARK J, talk by H. Newman
4. PLUTO, talk by Ch. Berger, and TASSO, talk by G. Wolf
5. presented to the Intern. Symp. on Lepton and photon interactions at high energies,1979