@article{Lekeu:2021cA,
  author = "Lekeu, Victor",
  title = "{Modave lecture notes: two useful topics in Lie algebras}",
  doi = "10.22323/1.389.0001",
  journal = "PoS",
  year = 2021,
  volume = "Modave 2020",
  pages = "001"
}