use doi instead of Springer link on project page

project-page/index.html

@@ -478,7 +478,7 @@ <h2 class="title is-3">Comparison with other 3DGS compression methods</h2>
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             <h2 class="title">BibTeX</h2>
-            <p>If you use our method in your research, please cite our paper. The paper was presented at ECCV 2024 and <a href="https://link.springer.com/chapter/10.1007/978-3-031-73013-9_2#citeas">published</a> in the official proceedings in 2025. You can use the following BibTeX entry:</p>
+            <p>If you use our method in your research, please cite our paper. The paper was presented at ECCV 2024 and <a href="https://doi.org/10.1007/978-3-031-73013-9_2">published</a> in the official proceedings in 2025. You can use the following BibTeX entry:</p>
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