diff --git a/references/2013_linux_aslr.pdf b/references/2013_linux_aslr.pdf
new file mode 100644
index 0000000..a3b2962
Binary files /dev/null and b/references/2013_linux_aslr.pdf differ
diff --git a/work/bibliography.bib b/work/bibliography.bib
index 27dcd1b..afc0c58 100644
--- a/work/bibliography.bib
+++ b/work/bibliography.bib
@@ -84,6 +84,22 @@ year={2007}
   url={https://www.cvedetails.com/vulnerability-list/year-2018/opov-1/overflow.html}
 }
 
+@online{FBSDaslr,
+  url = {https://svnweb.freebsd.org/base?view=revision\&revision=r343964},
+  year = {2019},
+  urlDate = {2019-12-10},
+  title = {{Implement Address Space Layout Randomization (ASLR)}},
+  author = {{Konstantin Belousov}}
+}
+
+@online{Linuxaslr,
+  url = {https://lwn.net/Articles/569635/},
+  year = {2013},
+  urlDate = {2019-12-10},
+  title = {{Kernel address space layout randomization}},
+  author = {{Jake Edge}}
+}
+
 existing:
 
 @article{Laprie2004,