@misc{1986,
  author = {Paul Stutzman},
  title = {Instructions in Using GSAS Rietveld Software for Quantitative X-ray Diffraction Analysis of Portland Clinker and Cement},
  year = {2015},
  month = {2015-06-01},
  publisher = {Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.TN.1884},
  language = {en},
}