TY - CONF A1 - Becker, Roland T1 - Zinc-dithialkyldithiophosphates in engine oils - Determination of Conent, Composition and Degradation during Operation using Gas and Liquid Chromatography T2 - 11th International Colloquium Tribology, Industrial and Automotive Lubrication T2 - 11th International Colloquium Tribology, Industrial and Automotive Lubrication CY - Esslingen am Neckar, Germany DA - 1998-01-13 PY - 1998 AN - OPUS4-5683 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -