@article{zeilberger,
  title = "A combinatorial proof of {N}ewton's identities",
  journal = "Discrete Mathematics",
  volume = "49",
  number = "3",
  pages = "319",
  year = "1984",
  issn = "0012-365X",
  doi = "https://doi.org/10.1016/0012-365X(84)90171-7",
  url = "http://www.sciencedirect.com/science/article/pii/0012365X84901717",
  author = "Doron Zeilberger"
}

@book{dummit,
  title={Abstract Algebra},
  author={Dummit, D. S. and Foote, R. M.},
  isbn={9780471433347},
  year={2003},
  publisher={Wiley}
}
