@article{Culik68b,
  title = {Languages for empirism and theory},
  author = {Karel Culík},
  year = {1968},
  url = {http://www.kybernetika.cz/content/1968/6/538},
  researchr = {https://researchr.org/publication/Culik68b},
  cites = {0},
  citedby = {0},
  journal = {Kybernetika},
  volume = {4},
  number = {6},
  pages = {538-547},
}