@misc{7236,
  author = {Jeffrey Bullard},
  title = {Virtual Cement and Concrete Testing Laboratory: Version 9.5 User Guide},
  year = {2014},
  month = {2014-05-29},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.1173},
  language = {en},
}