Missing and Inapplicable Values

Frank D. Linn. Missing and Inapplicable Values. SIGMOD Record, 16(2):18-19, 1987. [doi]

@article{Linn87-0,
  title = {Missing and Inapplicable Values},
  author = {Frank D. Linn},
  year = {1987},
  doi = {10.1145/988598.988599},
  url = {http://doi.acm.org/10.1145/988598.988599},
  researchr = {https://researchr.org/publication/Linn87-0},
  cites = {0},
  citedby = {0},
  journal = {SIGMOD Record},
  volume = {16},
  number = {2},
  pages = {18-19},
}