TY - CONF AU - Paul Stutzman C2 - 20th International Conference of Building Materials, Weimar, -1 DA - 2018-09-11 LA - en PB - 20th International Conference of Building Materials, Weimar, -1 PY - 2018 TI - Reference Materials and Proficiency Testing for Validating X-Ray Powder Diffraction Measurements of Cement Composition UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925966 ER -