From a61c4359c4e350d3ef7cde08a36d90779aa63b5c Mon Sep 17 00:00:00 2001
From: Philipp Le <philipp-le-prviat@freenet.de>
Date: Sat, 23 May 2020 12:15:27 +0200
Subject: Adding copyright notice and license files

---
 chapter04/content_ch04.tex | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'chapter04')

diff --git a/chapter04/content_ch04.tex b/chapter04/content_ch04.tex
index d750aa9..b3a3f97 100644
--- a/chapter04/content_ch04.tex
+++ b/chapter04/content_ch04.tex
@@ -1,3 +1,13 @@
+% SPDX-License-Identifier: CC-BY-SA-4.0
+%
+% Copyright (c) 2020 Philipp Le
+%
+% Except where otherwise noted, this work is licensed under a
+% Creative Commons Attribution-ShareAlike 4.0 License.
+%
+% Please find the full copy of the licence at:
+% https://creativecommons.org/licenses/by-sa/4.0/legalcode
+
 \chapter{Sampling and Time-Discrete Signals and Systems}
 
 \begin{refsection}
-- 
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