From fa37f5d17184db1ed95949352e71542af8fb4ce1 Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Tue, 24 Dec 2019 23:05:30 -0400
Subject: Ported program generation, host environment and packaging machinery
 to stdlib.

---
 documentation/research/math.md | 1 +
 1 file changed, 1 insertion(+)

(limited to 'documentation/research/math.md')

diff --git a/documentation/research/math.md b/documentation/research/math.md
index 36071c92b..69f045c43 100644
--- a/documentation/research/math.md
+++ b/documentation/research/math.md
@@ -64,6 +64,7 @@
 
 # _Compendium of resources_
 
+1. [Free and Open-Source Textbooks](http://danaernst.com/resources/free-and-open-source-textbooks/)
 1. [ALL IN ONE MATHEMATICS CHEAT SHEET](https://ourway.keybase.pub/mathematics_cheat_sheet.pdf)
 1. https://github.com/llSourcell/learn_math_fast
 1. https://www.algorithm-archive.org/
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