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       <br/>A Greiner-Petter, T Ruas, M Schubotz, A Aizawa, W Grosky, B Gipp<br/>
       <em>Proceedings of the 4rd Joint Workshop on Bibliometric-enhanced Information Retrieval and Natural Language Processing for Digital Libraries (BIRNDL 2018) co-located with the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2019), Paris, USA, July 25, 2019.</em>
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-      <a href="">PDF</a> 
+      <a href="http://ceur-ws.org/Vol-2414/paper14.pdf">PDF</a> 
       <a href="https://arxiv.org/pdf/1905.08359">Preprint</a>
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