From 4764ed2fc4c8204048bcf49f6af5be1f10ef0b46 Mon Sep 17 00:00:00 2001
From: Bokuan Li <bokuan.li@mail.mcgill.ca>
Date: Wed, 24 Jun 2026 14:05:32 -0400
Subject: [PATCH] Added Clarke to the list of references.

---
 refs.bib | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/refs.bib b/refs.bib
index 7a40537..88a6bfb 100644
--- a/refs.bib
+++ b/refs.bib
@@ -223,4 +223,16 @@
     note = {URL:https://math.stackexchange.com/q/392719 (version: 2013-05-15)},
     eprint = {https://math.stackexchange.com/q/392719},
     url = {https://math.stackexchange.com/q/392719}
+}
+
+@book{Clarke,
+  author    = {Clarke, Francis},
+  title     = {Functional Analysis, Calculus of Variations and Optimal Control},
+  series    = {Graduate Texts in Mathematics},
+  volume    = {264},
+  publisher = {Springer},
+  address   = {London},
+  year      = {2013},
+  doi       = {10.1007/978-1-4471-4820-3},
+  isbn      = {978-1-4471-4820-3}
 }
\ No newline at end of file