Update gipp.bib

gipp.bib

@@ -1689,5 +1689,31 @@
   title     = {Securing the Integrity of Time Series Data in Open Science Projects using Blockchain-based Trusted Timestamping},
 }
 
+@inproceedings{Scharpf2019,
+  author    = {Philipp Scharpf and
+               Moritz Schubotz and
+               Howard S. Cohl and
+               Bela Gipp},
+  editor    = {Muthu Kumar Chandrasekaran and
+               Philipp Mayr},
+  title     = {Towards Formula Concept Discovery and Recognition},
+  booktitle = {Proceedings of the 4th Joint Workshop on Bibliometric-enhanced Information
+               Retrieval and Natural Language Processing for Digital Libraries {(BIRNDL}
+               2019) co-located with the 42nd International {ACM} {SIGIR} Conference
+               on Research and Development in Information Retrieval {(SIGIR} 2019),
+               Paris, France, July 25, 2019.},
+  series    = {{CEUR} Workshop Proceedings},
+  volume    = {2414},
+  pages     = {108--115},
+  publisher = {CEUR-WS.org},
+  year      = {2019},
+  url       = {http://ceur-ws.org/Vol-2414/paper11.pdf},
+  timestamp = {Fri, 30 Aug 2019 13:15:06 +0200},
+  biburl    = {https://dblp.org/rec/bib/conf/sigir/ScharpfSCG19},
+  bibsource = {dblp computer science bibliography, https://dblp.org},
+  keywords  = {preprint,SchubotzCV},
+    preprint     = {http://ceur-ws.org/Vol-2414/paper11.pdf},
+
+}
 @comment{jabref-meta: databaseType:biblatex;
 }