Update citation (#453)

Author: Awais Athar

src/app/pages/submission/submission-direct/direct-submit.component.html

@@ -117,10 +117,9 @@ <h4>{{pluralise('Study')}} {{sidebar.submitType + 'd'}}</h4>
                   <i class="fa fa-fw fa-external-link-square"></i>
                 </a>
               </strong>
-              <p>
-                McEntyre J, Sarkans U, Brazma A (2015) The
-                BioStudies database. <i>Mol. Syst. Biol.</i> 11(12):847.
-                https://doi.org/10.15252/msb.20156658.
+              <p>Sarkans U, Gostev M, Athar A, et al. <a href="http://doi.org/10.1093/nar/gkx965">The BioStudies
+                database-one stop shop for all data supporting a life sciences study.</a>
+                <i>Nucleic Acids Res.</i> 2018;46(D1):D1266-D1270. doi:10.1093/nar/gkx965
               </p>
             </ng-container>
           </div>