1. R.F. Boyer, contribution in this volume.
2. J.K. Kruger and M. Pietralla, contribution in this volume.
3. K. Varadarajan and R.F. Boyer, contribution in this volume.
4. J.B. Enns and R.F. Boyer, contribution in this volume.
5. L.R. Denny and R.F. Boyer, contribution in this volume.