From 188dc52a11b4e30ebb84c83f87c6e833081c43ae Mon Sep 17 00:00:00 2001
From: Ashwin <ashwin.nayak@udc.es>
Date: Mon, 26 Jul 2021 14:50:58 +0200
Subject: [PATCH] citatation updated

---
 CITATION.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CITATION.md b/CITATION.md
index e8c460f..f168826 100644
--- a/CITATION.md
+++ b/CITATION.md
@@ -1,3 +1,5 @@
+# References
+
 Allard, J. and N. Atalla. "Propagation of Sound in Porous Media: Modelling 
 Sound Absorbing Materials", 2nd edition, Wiley, 2009. isbn: 9780470747346. 
 doi: [10.1002/9780470747339](https://doi.org//10.1002/9780470747339).