Input data for stray period issue

period-glitch.rdf

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        <dc:title>History of Political Economy</dc:title>
        <prism:volume>47</prism:volume>
        <prism:number>1</prism:number>
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          <foaf:Person>
            <foaf:surname>Button</foaf:surname>
            <foaf:givenname>Kenneth J.</foaf:givenname>
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    <dc:title>A book, the application, and the outcomes: how right was Alfred Kahn in &lt;i&gt;The Economics of Regulation&lt;/i&gt; about the effects of the deregulation of the US domestic airline market?</dc:title>
    <dc:date>2015</dc:date>
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    <dc:title>HOPE47_1_01Button_1pp.pdf</dc:title>
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