From e1abcb785109a8f69607a244558077d66ade2d70 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=92=D0=B8=D0=BA=D1=82=D0=BE=D1=80?=
 <61203964+grey-cat-1908@users.noreply.github.com>
Date: Tue, 30 Apr 2024 09:04:35 +0300
Subject: [PATCH] Update index.md

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 content/blog/1d-collisions/index.md | 4 ++++
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 * If you have any interesting projects that I could be involved in, or if you would like to contact me, you can do so [here](https://arbuz.icu/mail).
 
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+
+## Reference 
+
 [^1]: Galperin G. A., ["PLAYING POOL WITH π (THE NUMBER π FROM A BILLIARD POINT OF VIEW)"](http://rcd.ics.org.ru/RD2003v008n04ABEH000252/), Regular and Chaotic Dynamics, 2003, Volume 8, Number 4, pp. 375-394 DOI: [10.1070/RD2003v008n04ABEH000252](http://rcd.ics.org.ru/RD2003v008n04ABEH000252/)