Añade sección 'How to cite' con BibTeX

README.md

@@ -45,6 +45,24 @@ assumed):
 All three are Apache-2.0 at the source, consistent with this
 repository's license — no upstream restriction carries over.
 
+## How to cite
+
+Cite the code repository (this repo's own DOI,
+[10.57967/hf/9742](https://doi.org/10.57967/hf/9742), identifies
+these specific checkpoints if you need to reference them directly):
+
+```bibtex
+@software{munozpla2026samefunctiondifferentpruning,
+  author  = {Muñoz Plá, Manuel},
+  title   = {Same function, different pruning: the dominant direction
+             of W_O under free, soft, and hard intervention},
+  year    = {2026},
+  version = {2.0.0},
+  doi     = {10.5281/zenodo.21630535},
+  url     = {https://github.com/mmunozpl/angular-separation-vit}
+}
+```
+
 ## License
 
 Apache-2.0.