TY - CONF A1 - Ostermann, Markus A1 - Wedell, R. A1 - Kühn, A. T1 - Reference Matrials for online process monitoring of phosphorus and other elements in sewage sludge ash T2 - Euroanalysis 2015 T2 - Euroanalysis 2015 CY - Bordeaux, France DA - 2015-09-06 PY - 2015 AN - OPUS4-35054 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -