missing bracket added

Author: TLESORT

bibtex.bib

@@ -129,8 +129,8 @@ @article{Swaroop2019ImprovingAU
   volume={abs/1905.02099},
     keywords={Regularization},
     url="https://arxiv.org/abs/1905.02099"
-}
-@String(Swaroop2019ImprovingAU="Improved results and interpretation of VCL."
+})
+@String(Swaroop2019ImprovingAU="Improved results and interpretation of VCL.")
 
 @article{lee2020neural,
   title={A Neural Dirichlet Process Mixture Model for Task-Free Continual Learning},