TY - GEN A1 - Kerner-Gang, Waltraut ED - Walters, A. H. T1 - Evaluation techniques for the resistance of pipe-joint rings and sealants to microorganisms T2 - Biodeterioration, investigation, techniques PY - 1977 SN - 0-85334-696-8 SP - 41 EP - 49 PB - Applied Science Publ. CY - London AN - OPUS4-8485 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -