@misc{15326,
  author = {Jeffrey Bullard and Paul Stutzman},
  title = {Analysis of CCRL Portland Cement Proficiency Samples Number 151 and Number 152 Using the Virtual Cement and Concrete},
  year = {2005},
  month = {2005-09-15},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.7260},
  language = {en},
}