diff --git a/bibliography-sage.bib b/bibliography-sage.bib
index 535c49e..9a5238d 100644
--- a/bibliography-sage.bib
+++ b/bibliography-sage.bib
@@ -5864,4 +5864,16 @@ @misc{iwaki2024infinite
       eprint={2404.05096},
       archivePrefix={arXiv},
       primaryClass={math.GT}
-}
\ No newline at end of file
+}
+
+@article{chen2024polygnn,
+title = {{PolyGNN}: Polyhedron-based graph neural network for {3D} building reconstruction from point clouds},
+journal = {ISPRS Journal of Photogrammetry and Remote Sensing},
+volume = {218},
+pages = {693-706},
+year = {2024},
+issn = {0924-2716},
+doi = {https://doi.org/10.1016/j.isprsjprs.2024.09.031},
+url = {https://www.sciencedirect.com/science/article/pii/S0924271624003691},
+author = {Zhaiyu Chen and Yilei Shi and Liangliang Nan and Zhitong Xiong and Xiao Xiang Zhu},
+}