diff --git a/tutorials.json b/tutorials.json
index 9f24eaa05029e11ec67708044a7a1933f5691cf0..4cf81be41fe249aa384c54e317d02d1b9805932b 100644
--- a/tutorials.json
+++ b/tutorials.json
@@ -842,6 +842,7 @@
       "url": "https://gitlab.mpcdf.mpg.de/nomad-lab/analytics-co2-sgd-tutorial",
       "link": "https://analytics-toolkit.nomad-coe.eu/hub/user-redirect/notebooks/tutorials/CO2_SGD.ipynb",
       "link_public": "https://analytics-toolkit.nomad-coe.eu/public/user-redirect/notebooks/tutorials/CO2_SGD.ipynb",
+      "link_paper": "https://arxiv.org/abs/1912.06515",
       "updated": "2020-09-21",
       "flags":{
         "featured": true,