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	<title>Pp-wave spacetime - Revision history</title>
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	<updated>2026-07-10T05:57:54Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://en.formulasearchengine.com/w/index.php?title=Pp-wave_spacetime&amp;diff=238209&amp;oldid=prev</id>
		<title>en&gt;Sardanaphalus: /* top */ template name update</title>
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		<updated>2014-10-05T23:17:43Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;top: &lt;/span&gt; template name update&lt;/p&gt;
&lt;a href=&quot;https://en.formulasearchengine.com/w/index.php?title=Pp-wave_spacetime&amp;amp;diff=238209&amp;amp;oldid=8467&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>en&gt;Sardanaphalus</name></author>
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		<id>https://en.formulasearchengine.com/w/index.php?title=Pp-wave_spacetime&amp;diff=8467&amp;oldid=prev</id>
		<title>en&gt;Frinthruit: /* External links */</title>
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		<updated>2013-08-24T19:29:37Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;External links&lt;/span&gt;&lt;/p&gt;
&lt;a href=&quot;https://en.formulasearchengine.com/w/index.php?title=Pp-wave_spacetime&amp;amp;diff=8467&amp;amp;oldid=238208&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>en&gt;Frinthruit</name></author>
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		<id>https://en.formulasearchengine.com/w/index.php?title=Pp-wave_spacetime&amp;diff=238208&amp;oldid=prev</id>
		<title>87.152.33.24: /* References */ improved line-break</title>
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		<updated>2012-07-15T18:06:09Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;References: &lt;/span&gt; improved line-break&lt;/p&gt;
&lt;a href=&quot;https://en.formulasearchengine.com/w/index.php?title=Pp-wave_spacetime&amp;amp;diff=238208&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>87.152.33.24</name></author>
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