diff --git a/strings.html b/strings.html
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+++ b/strings.html
@@ -428,6 +428,7 @@ TypeError: Can't convert 'bytes' object to str implicitly</samp>
 <ul>
 <li><a href=http://docs.python.org/3.1/howto/unicode.html>Python Unicode HOWTO</a>
 <li><a href=http://docs.python.org/3.0/whatsnew/3.0.html#text-vs-data-instead-of-unicode-vs-8-bit>What&#8217;s New In Python 3: Text vs. Data Instead Of Unicode vs. 8-bit</a>
+<li><a href=http://www.python.org/dev/peps/pep-0261/><abbr>PEP 261</abbr></a> explains how Python handles astral characters outside of the Basic Multilingual Plane (<i>i.e.</i> characters whose ordinal value is greater than 65535)
 </ul>
 
 <p>On Unicode in general: