On infinite modes

Cornelis H. A. Koster. On infinite modes. SIGPLAN Notices, 4(3):86-89, 1969. [doi]

@article{Koster69,
  title = {On infinite modes},
  author = {Cornelis H. A. Koster},
  year = {1969},
  doi = {10.1145/1316865.1316868},
  url = {https://doi.org/10.1145/1316865.1316868},
  researchr = {https://researchr.org/publication/Koster69},
  cites = {0},
  citedby = {0},
  journal = {SIGPLAN Notices},
  volume = {4},
  number = {3},
  pages = {86-89},
}