@book{thebook,
  title      = {Ramsey Theory, 2nd Edition},
  author     = {Graham, Ronald L. and Rothschild, Bruce L. and Spencer, Joel H.},
  publisher  = {Wiley-Interscience},
  year       = {1990},
  month      = {March},
  day        = {2},
  isbn       = {978-0471500469},
  isbn10     = {0471500461},
}

@article{vdw,
  author  = {Katharina Kreuzer and Manuel Eberl},
  title   = {Van der {W}aerden's {T}heorem},
  journal = {Archive of Formal Proofs},
  month   = {June},
  year    = {2021},
  note    = {\url{https://isa-afp.org/entries/Van_der_Waerden.html},
            Formal proof development},
  ISSN    = {2150-914x},
}

