This author has not been identified. Look up 'Jean-Pierre Ebert' in GoogleThis author has not been identified. Look up 'Eckhard Grass' in GoogleThis author has not been identified. Look up 'Ralf Irmer' in GoogleThis author has not been identified. Look up 'Rolf Kraemer' in GoogleThis author has not been identified. Look up 'Gerhard Fettweis' in GoogleThis author has not been identified. Look up 'Karl Strom' in GoogleThis author has not been identified. Look up 'Günther Tränkle' in GoogleThis author has not been identified. Look up 'Walter Wirnitzer' in GoogleThis author has not been identified. Look up 'Reimund Wittmann' in GoogleThis author has not been identified. Look up 'Hans-Jürgen Reumerman' in GoogleThis author has not been identified. Look up 'Egon Schulz' in GoogleThis author has not been identified. Look up 'Martin Weckerle' in GoogleThis author has not been identified. Look up 'Peter Egner' in GoogleThis author has not been identified. Look up 'Ulrich Barth' in Google