diff --git a/ref.bib b/ref.bib
index 6177b32..1d3b03f 100644
--- a/ref.bib
+++ b/ref.bib
@@ -33742,3 +33742,19 @@ @article{wang:pacmdata2023
 address = {New York, NY, USA},
 numpages = 23
 }
+
+@misc{www-lemire-fastmodulo2016,
+  author = {Lemire, Daniel},
+  title = {A fast alternative to the modulo reduction},
+  year = 2017,
+  month = jun,
+  howpublished = {\url{https://lemire.me/blog/2016/06/27/a-fast-alternative-to-the-modulo-reduction/}},
+}
+
+@inproceedings{batcher1968sorting,
+  title={Sorting networks and their applications},
+  author={Batcher, Kenneth E},
+  booktitle={Proceedings of the April 30--May 2, 1968, spring joint computer conference},
+  pages={307--314},
+  year={1968}
+}