Add EMS newsletter

gipp.bib

@@ -1643,6 +1643,20 @@
   title        = {Overview of Licensing Platforms based on Distributed Ledger Technology},
 }
 
+@article{Schubotz2019b,
+  author       = {{Schubotz}, Moritz and {Teschke}, Olaf},
+  language     = {English},
+  publisher    = {European Mathematical Society (EMS) Publishing House, Zurich},
+  url          = {http://www.ems-ph.org/journals/show_pdf.php?issn=1027-488x&vol=6&iss=112&rank=15},
+  biburl       = {https://zbmath.org/bibtex/07065264.bib},
+  date         = {2019},
+  issn         = {1027-488X},
+  journaltitle = {{European Mathematical Society Newsletter}},
+  pages        = {50--52},
+  title        = {{Four decades of TeX at zbMATH.}},
+  volume       = {112},
+}
+
 @inproceedings{Schubotz2019,
   author    = {Schubotz, Moritz and Teschke, Olaf and Stange, Vincent and Meuschke, Norman and Gipp, Bela},
   location  = {Czech Republic},