TY - CONF A1 - Schmidt, Wolfram T1 - Mixture Proportioning for Rubustness of Concrete Properties T2 - ACCTA 2013, Pre-Conference Workshops T2 - ACCTA 2013, Pre-Conference Workshops CY - Johannesburg, South Africa DA - 2013-01-25 PY - 2013 AN - OPUS4-27674 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -