diff --git a/content/staff/tikhomirov.md b/content/staff/tikhomirov.md
index fd987ca..cc5a8fa 100644
--- a/content/staff/tikhomirov.md
+++ b/content/staff/tikhomirov.md
@@ -128,5 +128,9 @@ lab: "Лаборатория математики и телекоммуника
       F. Götze, A. Tikhomirov. <em>On the largest and the smallest singular value of sparse rectangular random matrices.</em><br>Electron. J. Probab. 28 (2023), article no. 27, 1–18.
       <a href="/static/pdf/tikhomirov/2023/2023_23-EJP919.pdf" target="_blank" rel="noopener" class="publication-pdf">PDF</a>
     </li>
+    <li>
+      F. Götze, A. Tikhomirov, D. Timushev. <em>Rate of Convergence for Sparse Sample Covariance Matrices.</em><br>Springer Proceedings in Mathematics & Statistics, vol 425. Springer, 2023.
+      <a href="/static/pdf/tikhomirov/2023/2023_978-3-031-30114-8_7.pdf" target="_blank" rel="noopener" class="publication-pdf">PDF</a>
+    </li>
   </ul>
 </details>
\ No newline at end of file