Update README.md

updating ref with volume

README.md

@@ -37,7 +37,7 @@ A free version (postprint / author-accepted manuscript) can be downloaded [here]
 # Citation
 To cite this work, please refer to the [paper](https://www.nature.com/articles/s44284-025-00330-x):
 
-Quintana, M., Gu, Y., Liang, X. et al. Global urban visual perception varies across demographics and personalities. Nat Cities (2025). https://doi.org/10.1038/s44284-025-00330-x
+Quintana M, Gu Y, Liang X, Hou Y, Ito K, Zhu Y, Abdelrahman M, Biljecki F (2025): Global urban visual perception varies across demographics and personalities. Nature Cities 2(11): 1092-1106. doi: 10.1038/s44284-025-00330-x
 
 BibTeX:
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