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        <dc:title>Building Blocks of Upward Planar Digraphs</dc:title>
        <dc:creator>Healy, Patrick</dc:creator>
        <dc:creator>Lynch, Karol</dc:creator>
        <dc:subject>P.840 Upward</dc:subject>
        <dc:subject>G.770 Planarity Testing</dc:subject>
        <dc:subject>P.540 Planar</dc:subject>
        <dc:description>We show that a digraph is upward planar if and only if its biconnected components have certain properties.&#13;
</dc:description>
        <dc:publisher>Springer</dc:publisher>
        <dc:contributor>Pach, János</dc:contributor>
        <dc:date>2004</dc:date>
        <dc:type>Conference Paper</dc:type>
        <dc:type>NonPeerReviewed</dc:type>
        <dc:identifier>Healy, Patrick and Lynch, Karol (2004) Building Blocks of Upward Planar Digraphs. [Conference Paper]</dc:identifier>
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