@article{186801,
  author = {Conrad Bock},
  title = {UML 2 Activity and Action Models, Part 4: Object Nodes},
  year = {2004},
  number = {3},
  month = {2004-01-01},
  publisher = {Journal of Object Technology},
  doi = {https://doi.org/10.5381/jot.2004.3.1.c3},
  language = {en},
}