TY - GEN A1 - Schmidt, Wolfram T1 - Importance of Cement Proficiency Testing T2 - SPIN Meeting and Cement and Concrete Workshop T2 - SPIN Meeting and Cement and Concrete Workshop CY - Dar Es Salaam, Tanzania DA - 2012-07-01 PY - 2012 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/26399 AN - OPUS4-26399 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany