@Book{meusburger,
  author =       {Meusburger, Catherine},
  title =        {Topologie},
  year =         2021,
  url =          {https://math.fau.de/wp-content/uploads/2024/01/Topologie.pdf}
}

@Book{munkres,
  author =       {Munkres, James R.},
  title =        {Topology},
  publisher =    {Pearson },
  year =         2015,
  address =      {Noida},
  edition =      {2nd ed. }
}

@Book{neeb,
  title =        {An Introduction to Topology},
  author =       {Neeb, Karl-Hermann},
  year =         2017,
  url =          {https://www.math.fau.de/wp-content/uploads/2024/01/topo.pdf}
}

@Book{querenburg,
  title =        {Mengentheoretische Topologie},
  author =       {Querenburg, Boto},
  year =         2013,
  publisher =    {Springer Berlin Heidelberg},
  doi =          {https://doi.org/10.1007/978-3-642-56860-2}
}