From bcd76dea2064302d51439897c6e5c3fa61a495f9 Mon Sep 17 00:00:00 2001
From: Dominique Orban <dominique.orban@gmail.com>
Date: Sat, 21 Sep 2024 07:26:29 -0400
Subject: [PATCH] enforce non-breakable space

---
 paper/defs.sty | 1 +
 1 file changed, 1 insertion(+)

diff --git a/paper/defs.sty b/paper/defs.sty
index 87482fc..d6d8e98 100644
--- a/paper/defs.sty
+++ b/paper/defs.sty
@@ -189,6 +189,7 @@
 \setlength{\bibsep}{0pt}
 \setlength{\bibindent}{0pt}
 \makeatletter
+\renewcommand*{\NAT@spacechar}{~}
 \renewcommand\NAT@bibsetnum[1]{\settowidth\labelwidth{\@biblabel{#1}}%
    \setlength{\leftmargin}{\bibindent}\addtolength{\leftmargin}{\dimexpr\labelwidth+\labelsep\relax}%
    \setlength{\itemindent}{-\bibindent}%