Acknowledgements

During this project we got help from many people. A big `thank you' to all of them, especially to Michael Downes from the AMS for his cooperation and help, to Stefan Lindner for his help with the Atari TEX and to Sebastian Rahtz for playing a willing guinea-pig. Finally we also want to thank Ron Whitney who did a marvelous job on all our articles so far. This time we posed some extra problems because he had to first make a new format in order to read how to make a new format.