Update citations.

Author: jwpeterson

doc/citations/maybe.bib

@@ -246,3 +246,14 @@ @InProceedings{Kato_2020b
   note      = {\url{https://doi.org/10.1115/IPACK2020-2556}}
 }
 
+% 2021 edition of the conference
+@InProceedings{Kato_2021,
+  author    = {Mitsuaki Kato and Takahiro Omori and Akihiro Goryu and Tomoya Fumikura and Kenji Hirohata},
+  title     = {Electromigration analysis of solder joints for power modules using an electrical-thermal-stress-atomic coupled model},
+  booktitle = {{Proceedings of the ASME 2021 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems}},
+  address   = {Virtual, Online},
+  pages     = {V001T07A004 (10 pages)},
+  month     = oct # {~26--28,},
+  year      = 2021,
+  note      = {\url{https://doi.org/10.1115/IPACK2021-69882}}
+}

doc/citations/preprints.bib

@@ -1,5 +1,16 @@
 % Preprints
 
+% MOOSE
+% "The equations above are implemented into a finite element framework MOOSE"
+@Article{Grilli_2021,
+  author  = {Nicol{\`{o}} Grilli and Daijun Hu and Dewen Yushu and Fan Chen and Wentao Yan},
+  title   = {Crystal plasticity model of residual stress in additive manufacturing using the element elimination and reactivation method},
+  journal = {Computational Mechanics},
+  month   = nov,
+  year    = 2021,
+  note    = {\url{https://doi.org/10.1007/s00466-021-02116-z}, ArXiv e-print: \url{https://arxiv.org/abs/2105.13257}}
+}
+
 % BISON
 % "The implemented models were demonstrated to improve BISON’s capabilities of predicting cladding damage and degradation behavior"
 @Article{Miao_2021,

doc/citations/twentyone.bib

@@ -1,3 +1,39 @@
+% IBAMR
+% "IBAMR and BeatIt rely on the parallel C++ FE library libMesh..."
+@Misc{Wells_2021,
+  author       = {David Wells and Ben Vadala-Roth and Jae H. Lee and Boyce E. Griffith},
+  title        = {A nodal immersed finite element-finite difference method},
+  month        = nov,
+  year         = 2021,
+  howpublished = {ArXiv e-print},
+  note         = {\url{https://arxiv.org/abs/2111.09958}}
+}
+
+% MOOSE
+% "The (weak form of the) ... relations ... have been implemented in the open source finite element package libMesh/MOOSE..."
+@Misc{Bai_2021b,
+  author       = {Yang Bai and Jaber Rezaei Mianroodi and Yan Ma and Alisson Kwiatkowski {da Silva} and Bob Svendsen and Dierk Raabe},
+  title        = {Chemo-mechanical phase-field modeling of iron oxide reduction with hydrogen},
+  month        = nov,
+  year         = 2021,
+  howpublished = {ArXiv e-print},
+  note         = {\url{https://arxiv.org/abs/2111.11538}}
+}
+
+% MOOSE
+% "The software, which is based on the finite element solver MOOSE ... is freely available"
+@Article{Degen_2021,
+  author  = {Denise Degen and Cameron Spooner and Magdalena Scheck-Wenderoth and Mauro Cacace},
+  title   = {{How biased are our models? -- A case study of the alpine region}},
+  journal = {Geoscientific Model Development},
+  month   = nov,
+  year    = 2021,
+  volume  = 14,
+  number  = 11,
+  pages   = {7133--7153},
+  note    = {\url{https://doi.org/10.5194/gmd-14-7133-2021}}
+}
+
 % MOOSE/BISON
 % "This study presented several statistical methods recently implemented in MOOSE
 % ... for failure analysis of nuclear fuels, and applied these methods to TRISO fuel analysis."
@@ -1378,18 +1414,6 @@ @Article{Green_2021
   note    = {\url{https://doi.org/10.1016/j.advwatres.2021.103942}}
 }
 
-% MOOSE
-% "The equations above are implemented into a finite element framework MOOSE"
-% author:grilli author:hu crystal plasticity
-@Misc{Grilli_2021,
-  author       = {Nicol{\`{o}} Grilli and Daijun Hu and Dewen Yushu and Fan Chen and Wentao Yan},
-  title        = {{Crystal plasticity model of residual stress in additive manufacturing}},
-  month        = may,
-  year         = 2021,
-  howpublished = {ArXiv e-print},
-  note         = {\url{https://arxiv.org/abs/2105.13257}}
-}
-
 % MOOSE
 % "The finite element simulation is performed using the open-source software MOOSE"
 @Article{Hofling_2021,