paper: Add DOIs to references

Add DOIs (Digital Object Identifiers) for most papers (except the oldest, which don't have nicely formatted ones).

For some reason Google Scholar didn't do this by default, which is kind of weird.

paper/paper.bib

@@ -1,10 +1,10 @@
 @book{epstein_axtell_1996,
-author = {Joshua M. Epstein and Robert Axtell},
-title = {Growing Artificial Societies: Social Science from the Bottom Up},
-year = {1996},
-publisher = {Brookings Institution Press and MIT Press},
-address = {Washington, DC, and Cambridge, MA},
-isbn = {9780262550253},
+  author = {Joshua M. Epstein and Robert Axtell},
+  title = {Growing Artificial Societies: Social Science from the Bottom Up},
+  year = {1996},
+  publisher = {Brookings Institution Press and MIT Press},
+  address = {Washington, DC, and Cambridge, MA},
+  isbn = {9780262550253},
 }
 
 @article{epstein1999,
@@ -19,25 +19,27 @@ @article{epstein1999
 }
 
 @inproceedings{Dra_gulescu_2003,
-title={Statistical Mechanics of Money, Income, and Wealth: A Short Survey},
-volume={661},
-ISSN={0094-243X},
-url={http://dx.doi.org/10.1063/1.1571309},
-DOI={10.1063/1.1571309},
-booktitle={AIP Conference Proceedings},
-publisher={AIP},
-author={Drǎgulescu, Adrian A.},
-year={2003},
-pages={180–183} }
+  title={Statistical Mechanics of Money, Income, and Wealth: A Short Survey},
+  volume={661},
+  ISSN={0094-243X},
+  url={http://dx.doi.org/10.1063/1.1571309},
+  DOI={10.1063/1.1571309},
+  booktitle={AIP Conference Proceedings},
+  publisher={AIP},
+  author={Drǎgulescu, Adrian A.},
+  year={2003},
+  pages={180–183}
+}
 
 @book{schelling_2006,
-author = {Thomas C. Schelling},
-title = {Micromotives and Macrobehavior},
-year = {2006},
-publisher = {W. W. Norton & Company},
-address = {New York},
-edition = {Revised},
-isbn = {9780393329469},
+  author = {Thomas C. Schelling},
+  title = {Micromotives and Macrobehavior},
+  year = {2006},
+  publisher = {W. W. Norton & Company},
+  address = {New York},
+  edition = {Revised},
+  isbn = {9780393329469},
+  doi = {10.2307/134812}
 }
 
 @inproceedings{masad2015,
@@ -46,24 +48,27 @@ @inproceedings{masad2015
   booktitle={SciPy},
   pages={51--58},
   year={2015},
-  organization={Citeseer}
+  organization={Citeseer},
+  doi={10.25080/Majora-7b98e3ed-009}
 }
 
 @inproceedings{kazil2020,
   title={Utilizing python for agent-based modeling: The mesa framework},
   author={Kazil, Jackie and Masad, David and Crooks, Andrew},
-  booktitle={Social, Cultural, and Behavioral Modeling: 13th International Conference, SBP-BRiMS 2020, Washington, DC, USA, October 18--21, 2020, Proceedings 13},
+  booktitle={Social, Cultural, and Behavioral Modeling: 13th International Conference, SBP-BRiMS 2020},
   pages={308--317},
   year={2020},
-  organization={Springer}
+  organization={Springer},
+  doi={10.1007/978-3-030-61255-9_30}
 }
 
 @inproceedings{wang2022mesa,
   title={Mesa-Geo: A GIS extension for the Mesa agent-based modeling framework in python},
   author={Wang, Boyu and Hess, Vincent and Crooks, Andrew},
   booktitle={Proceedings of the 5th ACM SIGSPATIAL International Workshop on GeoSpatial Simulation},
   pages={1--10},
-  year={2022}
+  year={2022},
+  doi={10.1145/3557989.3566157}
 }
 
 # Used Mesa (cited 2015 paper)
@@ -74,7 +79,8 @@ @article{namany2020sustainable
   volume={255},
   pages={120296},
   year={2020},
-  publisher={Elsevier}
+  publisher={Elsevier},
+  doi = {10.1016/j.jclepro.2020.120296}
 }
 
 @article{sun2020post,
@@ -84,7 +90,8 @@ @article{sun2020post
   volume={85},
   pages={102455},
   year={2020},
-  publisher={Elsevier}
+  publisher={Elsevier},
+  doi = {10.1016/j.trd.2020.102455}
 }
 
 @article{nageli2020towards,
@@ -94,7 +101,8 @@ @article{nageli2020towards
   volume={211},
   pages={109763},
   year={2020},
-  publisher={Elsevier}
+  publisher={Elsevier},
+  doi = {10.1016/j.enbuild.2020.109763}
 }
 
 @article{anatolitis2017putting,
@@ -104,7 +112,8 @@ @article{anatolitis2017putting
   volume={110},
   pages={394--402},
   year={2017},
-  publisher={Elsevier}
+  publisher={Elsevier},
+  doi = {10.1016/j.enpol.2017.08.024}
 }
 
 # Used Mesa (cited 2020 paper)
@@ -115,7 +124,8 @@ @article{leon2022multi
   volume={195},
   pages={116604},
   year={2022},
-  publisher={Elsevier}
+  publisher={Elsevier},
+  doi = {10.1016/j.eswa.2022.116604}
 }
 
 @article{ghanem2022balancing,
@@ -125,7 +135,8 @@ @article{ghanem2022balancing
   volume={55},
   pages={101195},
   year={2022},
-  publisher={Elsevier}
+  publisher={Elsevier},
+  doi = {10.1016/j.elerap.2022.101195}
 }
 
 @article{taberna2023uncertainty,
@@ -136,5 +147,6 @@ @article{taberna2023uncertainty
   number={44},
   pages={e2215675120},
   year={2023},
-  publisher={National Acad Sciences}
+  publisher={National Acad Sciences},
+  doi = {10.1073/pnas.2215675120}
 }