@article{conditionalpathanalysisinsinglyconnected,
  title = {Factorization of the Partial Covariance in Singly-Connected Path Diagrams},
  author = {Jose M. Peña},
  year = {2020},
  eprint = {2002.05226},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2002.05226v6},
}