Update sources.

sources.bib

@@ -81,6 +81,23 @@ @online{eewebCoilInductanceCalculator
   file = {/Users/julian/Zotero/storage/8F3RNYUY/coil-inductance.html}
 }
 
+@article{endresCurrentPhaseRelation2023,
+  title = {Current–{{Phase Relation}} of a {{WTe}} {\textsubscript{2}} {{Josephson Junction}}},
+  author = {Endres, Martin and Kononov, Artem and Arachchige, Hasitha Suriya and Yan, Jiaqiang and Mandrus, David and Watanabe, Kenji and Taniguchi, Takashi and Schönenberger, Christian},
+  date = {2023-05-24},
+  journaltitle = {Nano Letters},
+  shortjournal = {Nano Lett.},
+  volume = {23},
+  number = {10},
+  pages = {4654--4659},
+  issn = {1530-6984, 1530-6992},
+  doi = {10.1021/acs.nanolett.3c01416},
+  url = {https://pubs.acs.org/doi/10.1021/acs.nanolett.3c01416},
+  urldate = {2023-05-30},
+  langid = {english},
+  file = {/Users/julian/Zotero/storage/APUMZ9LC/Endres et al. - 2023 - Current–Phase Relation of a WTe 2 Josep.pdf}
+}
+
 @thesis{frolovCurrentphaseRelationsJosephson2005,
   title = {Current-Phase Relations of {{Josephson}} Junctions with Ferromagnetic Barriers},
   author = {Frolov, S. M.},