@book{topology,
  author = {Matsuzaka, Kazuo},
  publisher = {Iwanami Shoten},
  year = {1968},
  title={集合・位相入門 },
  note = {written in Japanese}
 }

@misc{standardborel,
  title = {Lecture Note of MATH245B in {UCLA}},
  key = {Lecture Note of MATH245B},
  howpublished = {\url{https://web.archive.org/web/20210506130459/https://www.math.ucla.edu/~biskup/245b.1.20w/}},
  year = {2020},
  note = {Accessed: June 27. 2023}
}

@book{borelsets,
  title = {A Course on Borel Sets},
  author = {Shashi Mohan Srivastava},
  doi = {10.1007/b98956},
  publisher = {Springer},
  year = {1998}
}

