add paper reference (#68)

CITATION.cff

@@ -0,0 +1,56 @@
+cff-version: "1.2.0"
+authors:
+- family-names: Kopriva
+  given-names: David A.
+  orcid: "https://orcid.org/0000-0002-8076-0856"
+- family-names: Winters
+  given-names: Andrew R.
+  orcid: "https://orcid.org/0000-0002-5902-1522"
+- family-names: Schlottke-Lakemper
+  given-names: Michael
+  orcid: "https://orcid.org/0000-0002-3195-2536"
+- family-names: Schoonover
+  given-names: Joseph A.
+  orcid: "https://orcid.org/0000-0001-5650-7095"
+- family-names: Ranocha
+  given-names: Hendrik
+  orcid: "https://orcid.org/0000-0002-3456-2277"
+contact:
+- family-names: Winters
+  given-names: Andrew R.
+  orcid: "https://orcid.org/0000-0002-5902-1522"
+doi: 10.5281/zenodo.14342391
+message: If you use this software, please cite our article in the
+  Journal of Open Source Software.
+preferred-citation:
+  authors:
+  - family-names: Kopriva
+    given-names: David A.
+    orcid: "https://orcid.org/0000-0002-8076-0856"
+  - family-names: Winters
+    given-names: Andrew R.
+    orcid: "https://orcid.org/0000-0002-5902-1522"
+  - family-names: Schlottke-Lakemper
+    given-names: Michael
+    orcid: "https://orcid.org/0000-0002-3195-2536"
+  - family-names: Schoonover
+    given-names: Joseph A.
+    orcid: "https://orcid.org/0000-0001-5650-7095"
+  - family-names: Ranocha
+    given-names: Hendrik
+    orcid: "https://orcid.org/0000-0002-3456-2277"
+  date-published: 2024-12-11
+  doi: 10.21105/joss.07476
+  issn: 2475-9066
+  issue: 104
+  journal: Journal of Open Source Software
+  publisher:
+    name: Open Journals
+  start: 7476
+  title: "HOHQMesh: An All Quadrilateral/Hexahedral Unstructured Mesh
+    Generator for High Order Elements"
+  type: article
+  url: "https://joss.theoj.org/papers/10.21105/joss.07476"
+  volume: 9
+title: "HOHQMesh: An All Quadrilateral/Hexahedral Unstructured Mesh
+  Generator for High Order Elements"

README.md

@@ -90,7 +90,22 @@ Additional examples are available in the [Tutorials](https://trixi-framework.git
 
 
 ## Referencing
-If you use HOHQMesh.jl in your own research, please cite this repository as follows:
+If you use HOHQMesh.jl in your own research, please cite the following article:
+```bibtex
+@article{kopriva2024hohqmesh:joss,
+  title={{HOHQM}esh: An All Quadrilateral/Hexahedral Unstructured Mesh Generator for High Order Elements},
+  author={David A. Kopriva and Andrew R. Winters and Michael Schlottke-Lakemper
+          and Joseph A. Schoonover and Hendrik Ranocha},
+  year={2024},
+  journal={Journal of Open Source Software},
+  doi={10.21105/joss.07476},
+  volume = {9},
+  number = {104},
+  pages = {7476},
+  publisher = {The Open Journal}
+}
+```
+In addition, you can also directly refer to this repository as
 ```bibtex
 @misc{kopriva2024hohqmeshjl,
   title={{HOHQM}esh.jl: A Julia frontend to the Fortran-based HOHQMesh mesh generator for high order elements},
@@ -100,8 +115,6 @@ If you use HOHQMesh.jl in your own research, please cite this repository as foll
   doi={10.5281/zenodo.13959071}
 }
 ```
-Please also consider citing [HOHQMesh](https://github.com/trixi-framework/HOHQMesh) itself (see
-[here](https://github.com/trixi-framework/HOHQMesh#referencing) for details on how to do this).
 
 
 ## Authors