TY - CONF A1 - Ridsdale, P. A1 - Cali, J. A1 - Cox, J. A1 - de Bievre, P. A1 - van der Eijk, W. A1 - Marshal, A. A1 - Wandelburg, Klaus T1 - Panel on General Principles of the Certification Procedure for RM's T2 - International Symposium on the Production and Use of Reference Materials CY - Berlin, BAM DA - 1979-11-13 PY - 1980 SP - 443 EP - 459 PB - BAM CY - Berlin AN - OPUS4-9273 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pohl, Heinz A1 - Jecko, G. A1 - Ridsdale, P. D. T1 - Euro-Standards of Iron Ores PY - 1977 SN - 0150-5505 VL - 1 IS - 2 SP - 131 EP - 135 PB - Association Nationale de la Recherche Technique CY - Vandoeuvre-lès-Nancy AN - OPUS4-8620 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -