diff --git a/README.md b/README.md
index 1d7dcf1..9f1ad78 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@
 
 [![Built with Starlight](https://astro.badg.es/v2/built-with-starlight/tiny.svg)](https://starlight.astro.build)
 [![License: CC BY 4.0](https://img.shields.io/badge/License-CC%20BY%204.0-lightgrey.svg)](https://creativecommons.org/licenses/by/4.0/)
+[![DOI: 10.5281/zenodo.17828215](https://zenodo.org/badge/702886093.svg)](https://doi.org/10.5281/zenodo.17828215)
+
 
 <img align="right" src="./src/assets/Yoshimura Kokei 3 Hanging scrolls of Hawk, Spider and Bear.jpg" alt="Обложка" width="200" style="padding-left: 10px;">
 
diff --git a/src/components/Sidebar.astro b/src/components/Sidebar.astro
index 24015d3..c8362fd 100644
--- a/src/components/Sidebar.astro
+++ b/src/components/Sidebar.astro
@@ -6,7 +6,8 @@ import cc from "../assets/cc.svg";
 
 <Default><slot /></Default>
 <small>
-  Титов Г. С. Практическое введение в веб&#8209;картографию. Москва, 2025.
+  Титов Г. С. Практическое введение в веб&#8209;картографию. Москва, 2025. DOI:
+  10.5281/zenodo.17828216
 </small>
 
 <a