@misc{1182751,
  author = {Lawrence A Salomone and Felix Y Yokel},
  title = {Proceedings, Federal Workshop on Excavation Safety, September 19 and 20, 1978:},
  year = {1979},
  month = {1979-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.79-1935},
  language = {en},
}