@misc{1160621,
  author = {Gary E Fisher},
  title = {A functional model for fourth generation languages:},
  year = {1986},
  month = {1986-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.500-138},
  language = {en},
}