@misc{1159366,
  author = {Helen M Ondik and Bruce W Christ and Alvin Perloff},
  title = {Construction materials for coal conversion:},
  year = {1982},
  month = {1982-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.642},
  language = {en},
}