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    <title language="eng">Making the Yellow Angels Fly</title>
    <parentTitle language="eng">SIAM News</parentTitle>
    <enrichment key="PreprintUrn">urn:nbn:de:0297-zib-6858</enrichment>
    <author>Martin Grötschel</author>
    <author>Sven Krumke</author>
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    <author>Luis Miguel Torres</author>
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    <title language="eng">Wo bleibt der Aufzug?</title>
    <parentTitle language="eng">OR News</parentTitle>
    <enrichment key="PreprintUrn">urn:nbn:de:0297-zib-4175</enrichment>
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    <editor>Hans-Jakob Lüthi</editor>
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