Update eu-act-os-guideai.md

eu-act-os-guideai.md

@@ -564,3 +564,20 @@ Developers can leverage a number of open-source tools to adhere to many of these
  🛠️ [Join the conversation!](https://huggingface.co/spaces/hfmlsoc/eu-ai-act-os-guide-gpai/discussions) We're building follow-up resources on compliance tools and best practices, but we need your input to make them truly useful. Whether you have questions about this guide, tools and workflows to share, or want to help identify what's still missing, reach out! Let's work together to get the community ready for AI Act compliance.
 
 ---
+
+This guide was written as a collaboration between [Hugging Face](https://huggingface.co/), the [Mozilla Foundation](https://www.mozillafoundation.org/), and the [Linux Foundation](https://www.linuxfoundation.org/)
+by Cailean Osborne, Maximilian Gahntz, Lucie-Aimée Kaffee, Bruna Trevelin, Brigitte Toussignant, and Yacine Jernite.
+
+We additionally thank Steve Wilson for helpful advice.
+
+Please cite as:
+```
+@techreport{osborne2025euaiact,
+  title={What Open-Source Developers Need to Know about the EU AI Act's Rules for GPAI models},
+  author={Osborne, Cailean and Gahntz, Maximilian and Kaffee, Lucie-Aim{\'e}e and Trevelin, Bruna and Toussignant, Brigitte and Jernite, Yacine},
+  institution={Hugging Face, Mozilla Foundation, and Linux Foundation},
+  year={2025},
+  url={https://hf.co/spaces/hfmlsoc/eu-ai-act-os-guide-gpai},
+  type={Guide}
+}
+```