@misc{indiciae5a20697574d4,
  title = {Hierarchy measures in complex networks.},
  author = {Ala Trusina and Sergei Maslov and Petter Minnhagen and Kim Sneppen},
  year = {2004},
  doi = {10.1103/physrevlett.92.178702},
  url = {https://pubmed.ncbi.nlm.nih.gov/15169201/},
  note = {Source identifier: 15169201}
}