@article{Horan02,
  title = {Eiffel Assertions and the External Structure of Classes and Objects},
  author = {Peter Horan},
  year = {2002},
  url = {http://www.jot.fm/issues/issue_2002_09/article1},
  tags = {meta-model, Meta-Environment, Eiffel, meta-objects},
  researchr = {https://researchr.org/publication/Horan02},
  cites = {0},
  citedby = {0},
  journal = {Journal of Object Technology},
  volume = {1},
  number = {4},
  pages = {105-118},
}