From 9657833b115c8a61509295d2296c6f89e81fd219 Mon Sep 17 00:00:00 2001
From: Prefetch
Date: Fri, 28 May 2021 15:27:37 +0200
Subject: Improve citations

---
 content/know/concept/fourier-transform/index.pdc | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'content/know/concept/fourier-transform/index.pdc')

diff --git a/content/know/concept/fourier-transform/index.pdc b/content/know/concept/fourier-transform/index.pdc
index 96653f5..3be47ff 100644
--- a/content/know/concept/fourier-transform/index.pdc
+++ b/content/know/concept/fourier-transform/index.pdc
@@ -116,3 +116,10 @@ $$\begin{aligned}
         = \hat{\mathcal{F}}\{ (i s x)^n f(x) \}
     }
 \end{aligned}$$
+
+
+
+## References
+1.  O. Bang,
+    *Applied mathematics for physicists: lecture notes*, 2019,
+    unpublished.
-- 
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