From 4813e5344472f30faa7a90a5d253f3e47ef878ab Mon Sep 17 00:00:00 2001
From: Alex Kotov <kotovalexarian@gmail.com>
Date: Fri, 20 Nov 2020 12:03:26 +0500
Subject: [PATCH] Add footnotes

---
 01_chapter_1_introduction.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/01_chapter_1_introduction.md b/01_chapter_1_introduction.md
index 9fdbd30..58e01f1 100644
--- a/01_chapter_1_introduction.md
+++ b/01_chapter_1_introduction.md
@@ -276,3 +276,8 @@
 [^7]: Thompson [1847] стр. 110, также процитировано в Lord [1923].
 
 [^8]: Scherer [1984] стр. 24-25.
+
+[^9]: U.S. District Court for Eastern District of Virginia Plaintiff NTP, Inc.
+      v. Defendant Research In Motion Ltd. Civil Action Number 3:01CV767-JRS.
+
+[^10]: U.S. Patent 6219694.