1. COMPOUND-SPECIFIC STABLE ISOTOPE ANALYSIS (CSIA) FOR MONITORING IN SITU BENZENE BIODEGRADATION IN CONTAMINATED AQUIFERS. Authors: ANKO FISCHER, CARSTEN VOGT, STEFFI HERRMANN, KATJA THEUERKORN, ILKA HERKLOTZ, MARTIN THULLNER, HANS-HERMANN RICHNOW.