edited by Detlef Staude and Eckart Ruschmann. edited by Philipp Demandt and Ilka Voermann. edited by Tetsuo Najita and J. Victor Koschmann edited by David E. Rowe and Robert Schulmann. edited by Robert Klanten and Sven Ehmann. edited by Stephen Gudeman and Chris Hann. edited by Detlef Mertins and Michael W. Jennings edited by Don Leggett and Richard Dunn. edited by Janet Maybin and Joan Swann. edited by Ralf Beil and Claudia Dillmann.