@misc{1181441,
  author = {A R Marriott and G H Skillman and S B Salazar and W T Hardgrave},
  title = {M7 ::a general pattern matching facility users manual},
  year = {1981},
  month = {1981-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.80-2182},
  language = {en},
}