1. e+e- physics at petra—the first five years
2. J.P. Cole, Renormalisation of the standard electroweak model, to be published in Prog. Part. Nucl. Phys.
3. For a review see, e.g., H. Fritzsch, MPI-PAE/PTh41/84
4. R.D. Peccei, MPI-PAE/PTh42/84, and references therein