@book{AndreasGathmann515,
  author = {Gathmann, Andreas},
  date   = {2019},
  note   = {\url{https://www.mathematik.uni-kl.de/~gathmann/class/alggeom-2019/alggeom-2019.pdf}},
  title  = {Algebraic Geometry},
}

@book{jacobson_2009,
  author    = {Jacobson, Nathan},
  publisher = {Dover Publications, Inc.},
  date      = {2009},
  title     = {Basic algebra II},
}