Merge branch 'add-publications' into 'master'

Add Kerntechnik article

See merge request !708

publications.md

@@ -14,6 +14,10 @@ excerpt:
 
 # Publications, Presentations, Selected Blog Posts
 
+#### 2023
+
+* Lehnigk, R., Bruschewski, M., Huste, T., Lucas, D., Rehm, M. and Schlegel, F. (2023) Sustainable development of simulation setups and addons for OpenFOAM for nuclear reactor safety research. Kerntechnik. <https://doi.org/10.1515/kern-2022-0107>
+
 ##### 2022
 
 * **Applications of Helmholtz AAI** for FZJ IT-Forum, December 2022