Updated references to remove n.d. and missing author-name

Author: mlxd

paper.bib

@@ -186,14 +186,17 @@ @article{ORiordan2016b
 @misc{documentation,
   title = {{GPUE documentation website}},
   author = {Schloss, J and O'Riordan, L. J.},
+  year = {2018},
   howpublished = {\url{https://gpue-group.github.io/}}
 }
 
 
 @misc{WittekGPE2016,
   title = {{Comparing three numerical solvers of the Gross-Pitaevskii equation}},
+  author = {Wittek, P.},
+  year = {2016},
   howpublished = {\url{https://web.archive.org/web/20171120181431/https://peterwittek.com/gpe-comparison.html}},
-  note = {Accessed: 2018-10-04}
+  note = {Updated: 18/01/2017. Accessed: 2018-10-04}
 }
 
 @phdthesis {ORiordan2017,