@manual{GNULib,
  title =        "{The GNU Portability Library}",
  organization = "{Free Software Foundation}",
  bibdate =      "February 24, 2019",
  bibsource =    "https://www.gnu.org/software/gnulib/manual"
}

@manual{GNUCLib,
  title =        "{The GNU C Library}",
  organization = "{Free Software Foundation}",
  bibdate =      "February 1, 2020",
  bibsource =    "https://www.gnu.org/software/libc/manual"
}

@inproceedings{HashConsing,
author = {Filliundefinedtre, Jean-Christophe and Conchon, Sylvain},
title = {Type-Safe Modular Hash-Consing},
year = {2006},
isbn = {1595934839},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
url = {https://doi.org/10.1145/1159876.1159880},
doi = {10.1145/1159876.1159880},
booktitle = {Proceedings of the 2006 Workshop on ML},
pages = {12–19},
numpages = {8},
keywords = {data structures, hash-consing, sharing},
location = {Portland, Oregon, USA},
series = {ML ’06}
}