Reciprocity, transitivity, and the mysterious three-cycle

Per Block. Reciprocity, transitivity, and the mysterious three-cycle. Social Networks, 40:163-173, 2015. [doi]

@article{Block15,
  title = {Reciprocity, transitivity, and the mysterious three-cycle},
  author = {Per Block},
  year = {2015},
  doi = {10.1016/j.socnet.2014.10.005},
  url = {http://dx.doi.org/10.1016/j.socnet.2014.10.005},
  researchr = {https://researchr.org/publication/Block15},
  cites = {0},
  citedby = {0},
  journal = {Social Networks},
  volume = {40},
  pages = {163-173},
}