Alternatives to extensible languages

M. Douglas McIlroy. Alternatives to extensible languages. SIGPLAN Notices, 4(8):50-52, 1969. [doi]

@article{McIlroy69-0,
  title = {Alternatives to extensible languages},
  author = {M. Douglas McIlroy},
  year = {1969},
  doi = {10.1145/1115858.1115870},
  url = {https://doi.org/10.1145/1115858.1115870},
  researchr = {https://researchr.org/publication/McIlroy69-0},
  cites = {0},
  citedby = {0},
  journal = {SIGPLAN Notices},
  volume = {4},
  number = {8},
  pages = {50-52},
}