What is a Data Base (Tutorial from ACM 1972)

John K. Lyon. What is a Data Base (Tutorial from ACM 1972). SIGMOD Record, 5(1):44-62, 1973. [doi]

@article{Lyon73,
  title = {What is a Data Base (Tutorial from ACM 1972)},
  author = {John K. Lyon},
  year = {1973},
  doi = {10.1145/983055.983058},
  url = {http://doi.acm.org/10.1145/983055.983058},
  tags = {rule-based, data-flow},
  researchr = {https://researchr.org/publication/Lyon73},
  cites = {0},
  citedby = {0},
  journal = {SIGMOD Record},
  volume = {5},
  number = {1},
  pages = {44-62},
}