Update README.md

README.md

@@ -50,5 +50,15 @@ More information on the dataset can be found in the paper "Market responses to a
 
 Please cite the paper "Market responses to a VIX shock" by Albert J. Menkveld, Nikolaus Hautsch, and Stefan Voigt when using our dataset.
 
-**BibTeX:** [More Information Needed]
+**BibTeX:** 
+
+    @unpublished{menkveld2026vix,
+      author = {Menkveld, Albert J. and Hautsch, Nikolaus and Voigt, Stefan},
+      title  = {Market Responses to a {VIX} Shock},
+      note   = {Available at SSRN: \url{https://ssrn.com/abstract=6298780}},
+      url    = {https://ssrn.com/abstract=6298780},
+      year   = {2026},
+      month  = feb,
+      day    = {24},
+    }