Merge pull request #49 from scientificcomputing/haubner-update

Author: jorgensd

docs/references.bib

@@ -61,12 +61,16 @@ @article{Gjerde2022
   doi={10.1090/mcom/3682}
 }
 
-@misc{Haubner2021,
-  title        = "A novel density based approach for topology optimization of {S}tokes flow",
-  author       = "Haubner, Johannes and Ulbrich, Michael and Neumann, Franziska",
-  howpublished = "\url{https://igdk1754.ma.tum.de/downloads/Preprints/2105_HaubnerJ.pdf}",
-  year         = 2021,
-  note         = ""
+
+@article{Haubner2021,
+author = {Haubner, Johannes and Neumann, Franziska and Ulbrich, Michael},
+title = {{A Novel Density Based Approach for Topology Optimization of Stokes Flow}},
+journal = {SIAM Journal on Scientific Computing},
+volume = {45},
+number = {2},
+pages = {A338-A368},
+year = {2023},
+doi = {10.1137/21M143114X}
 }
 
 @article{saetra2021,