This author has not been identified. Look up 'Martin Junghans' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Dirk Riehle' in GoogleThis author has not been identified. Look up 'Rama Gurram' in GoogleThis author has not been identified. Look up 'Matthias Kaiser' in GoogleThis author has not been identified. Look up 'Mário Lopes' in GoogleThis author has not been identified. Look up 'Ümit Yalçinalp' in Google