diff --git a/paper.bib b/paper.bib
index da4d473..88610f7 100644
--- a/paper.bib
+++ b/paper.bib
@@ -7,7 +7,6 @@ @article{jiang1995multiple
   pages={1111--1127},
   year={1995},
   publisher={Genetics Soc America},
-  doi={}
 }
 
 @article{knott2000multitrait,
@@ -41,7 +40,7 @@ @article{efron1979bootstrap
   pages={1-26},
   year={1979},
   publisher={American Statistical Association},
-  doi={doi:10.1214/aos/1176344552}
+  doi={10.1214/aos/1176344552}
 }
 
 @article{tian2016dissection,
@@ -53,19 +52,19 @@ @article{tian2016dissection
   pages={1563--1574},
   year={2016},
   publisher={Genetics Soc America},
-  doi={https://doi.org/10.1534/genetics.115.183624}
+  doi={10.1534/genetics.115.183624}
 }
 
 @article{zhou2014efficient,
   title={Efficient multivariate linear mixed model algorithms for genome-wide association studies},
   author={Zhou, Xiang and Stephens, Matthew},
-  journal={Nature methods},
+  journal={Nature Methods},
   volume={11},
   number={4},
   pages={407},
   year={2014},
   publisher={Nature Publishing Group},
-  doi={https://doi.org/10.1038/nmeth.2848}
+  doi={10.1038/nmeth.2848}
 }
 
 @article{kang2008efficient,
@@ -77,7 +76,7 @@ @article{kang2008efficient
   pages={1709--1723},
   year={2008},
   publisher={Genetics Soc America},
-  doi={https://doi.org/10.1534/genetics.107.080101}
+  doi={10.1534/genetics.107.080101}
 }
 
 @article{boehm2019testing,
@@ -85,30 +84,30 @@ @article{boehm2019testing
   author={Boehm, Frederick J. and Chesler, Elissa J. and Yandell, Brian S. and Broman, Karl W.},
   journal={G3: Genes, Genomes, Genetics},
   year={2019},
-  doi={https://doi.org/10.1534/g3.119.400098}
+  doi={10.1534/g3.119.400098}
   }
 
 
 @article{wickham2011testthat,
-  title={testthat: Get started with testing},
+  title={{testthat}: Get started with testing},
   author={Wickham, Hadley},
   journal={The R Journal},
   volume={3},
   number={1},
   pages={5--10},
   year={2011},
-  doi={https://doi.org/10.32614/rj-2011-002}
+  doi={10.32614/rj-2011-002}
 }
 
 @article{eddelbuettel2011rcpp,
-  title={Rcpp: Seamless {R} and {C}++ integration},
+  title={{Rcpp}: Seamless {R} and {C}++ integration},
   author={Eddelbuettel, Dirk and Fran{\c{c}}ois, Romain and Allaire, J and Ushey, Kevin and Kou, Qiang and Russel, N and Chambers, John and Bates, D},
   journal={Journal of Statistical Software},
   volume={40},
   number={8},
   pages={1--18},
   year={2011},
-  doi={http://dx.doi.org/10.18637/jss.v040.i08}
+  doi={10.18637/jss.v040.i08}
 }
 
 @article{bates2013fast,
@@ -119,5 +118,5 @@ @article{bates2013fast
   number={5},
   pages={1--24},
   year={2013},
-  doi={https://doi.org/10.18637/jss.v052.i05}
+  doi={10.18637/jss.v052.i05}
 }