@book{chassellIntro,
  title = {An Introduction to Programming in {{Emacs Lisp}}},
  author = {Chassell, Robert},
  date = {2023},
  publisher = {{GNU Press}},
  location = {Boston},
  url = {https://www.gnu.org/software/emacs/manual/eintr.html}
}

@book{friends,
  title = {{{LaTeX}} and Friends},
  author = {van Dongen, M.R.C.},
  date = {2012},
  location = {Berlin},
  publisher = {Springer},
  doi = {10.1007/978-3-642-23816-1},
  isbn = {9783642238161}
}