This author has not been identified. It may be one of the following persons: Look up 'Michael R. Fellows' in GoogleThis author has not been identified. Look up 'Jiong Guo' in GoogleThis author has not been identified. Look up 'Christian Komusiewicz' in GoogleThis author has not been identified. Look up 'Rolf Niedermeier' in GoogleThis author has not been identified. Look up 'Johannes Uhlmann' in Google