From c4d938ebb2f5245b4c3faa22c4f217e7e818589f Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Tue, 14 Jun 2022 02:33:54 -0400
Subject: Better syntax for invoking super methods inside overriden methods.

---
 documentation/bookmark/operating_system/timer.md | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 documentation/bookmark/operating_system/timer.md

(limited to 'documentation/bookmark/operating_system')

diff --git a/documentation/bookmark/operating_system/timer.md b/documentation/bookmark/operating_system/timer.md
new file mode 100644
index 000000000..5cf2252b8
--- /dev/null
+++ b/documentation/bookmark/operating_system/timer.md
@@ -0,0 +1,4 @@
+# Reference
+
+0. [Hashed and Hierarchical Timing Wheels: Data Structures for the Efficient Implementation of a Timer Facility](http://www.cs.columbia.edu/~nahum/w6998/papers/sosp87-timing-wheels.pdf)
+
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