1. R. A. Broglia, O. Hansen and C. Riedel, Advances in Nuclear Physics, ed. M. Baranger and E. Vogt, to be published
2. K. Rudolph, W. Wieczorek, D. Evers and S. J. Skorka, to be published
3. On the construction of a fast constant fraction trigger with integrated circuits and application to various photomultipliertubes
4. P. Sperr, M. R. Maier and D. Evers, to be published
5. M. Drosg, private communication