@article{PhysRevA.67.042303,
  title = {Polynomial invariants of four qubits},
  author = {Luque, Jean-Gabriel and Thibon, Jean-Yves},
  journal = {Phys. Rev. A},
  volume = {67},
  issue = {4},
  pages = {042303},
  numpages = {5},
  year = {2003},
  month = {Apr},
  publisher = {American Physical Society},
  doi = {10.1103/PhysRevA.67.042303},
  url = {https://link.aps.org/doi/10.1103/PhysRevA.67.042303}
}