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	<title>formulasearchengine - User contributions [en]</title>
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	<updated>2026-09-21T23:48:11Z</updated>
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		<title>Recursive tree</title>
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		<updated>2012-12-13T20:27:31Z</updated>

		<summary type="html">&lt;p&gt;137.99.12.228: &lt;/p&gt;
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[[Category:Profession user templates|Quantum physicist]]&lt;br /&gt;
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		<author><name>137.99.12.228</name></author>
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