diff --git a/jupyter-prometheus/combined_demos/TCIA_notebook.ipynb b/jupyter-prometheus/combined_demos/TCIA_notebook.ipynb
index 36b4ef1c..7ecf9c2c 100644
--- a/jupyter-prometheus/combined_demos/TCIA_notebook.ipynb
+++ b/jupyter-prometheus/combined_demos/TCIA_notebook.ipynb
@@ -927,11 +927,39 @@
     "With these extensions the notebook evolves from a showcase into a\n",
     "production-ready radiogenomic analysis scaffold.\n"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "c8ae151d",
+   "metadata": {},
+   "source": [
+    "## 📚 References & Recommended Resources\n",
+    "\n",
+    "1.  **Do, N., Grossman, R. L., Feldman, T., _et al._ (2019).** “The Veterans Precision Oncology Data Commons: Transforming VA data into a national resource for research in precision oncology.” *Seminars in Oncology* **46**(4-5), 314–320. <https://pubmed.ncbi.nlm.nih.gov/31629530/>\n",
+    "\n",
+    "2.  **Clark, K., Vendt, B., Smith, K., _et al._ (2013).** “The Cancer Imaging Archive (TCIA): Maintaining and Operating a Public Information Repository.” *Journal of Digital Imaging* **26**, 1045–1057. <https://doi.org/10.1007/s10278-013-9622-7>\n",
+    "\n",
+    "3.  **VA Precision Oncology Data Commons Portal.** Accessed July 2025. <https://vpodc.data-commons.org/>\n",
+    "\n",
+    "4.  **The Cancer Imaging Archive (TCIA) Portal.** Accessed July 2025. <https://www.cancerimagingarchive.net/>\n",
+    "\n",
+    "---\n",
+    "\n",
+    "### 🔗 Helpful How‑Tos & Client Tools\n",
+    "\n",
+    "* **Gen3 Client Documentation:** <https://gen3.org/resources/user/gen3-client/>\n",
+    "* **Gen3 Commons Portal:** <https://gen3.datacommons.io/>\n",
+    "* **VPODC Project Overview:** <https://vpodc.data-commons.org/>\n",
+    "\n",
+    "> **Tip:** If you encounter HTTP 403 errors when downloading data, verify that your Gen3 credentials JSON is present in `~/.gen3/credentials.json` and that your account has the proper access policies.\n",
+    "\n",
+    "For additional assistance, contact your program’s system administrator or open a ticket with Gen3 Support."
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -945,7 +973,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.6"
+   "version": "3.6.10"
   }
  },
  "nbformat": 4,
diff --git a/jupyter-prometheus/combined_demos/VPODC_data_download_guide.ipynb b/jupyter-prometheus/combined_demos/VPODC_data_download_guide.ipynb
index 6d8fe1f9..fd3dc58b 100644
--- a/jupyter-prometheus/combined_demos/VPODC_data_download_guide.ipynb
+++ b/jupyter-prometheus/combined_demos/VPODC_data_download_guide.ipynb
@@ -2111,20 +2111,36 @@
    "metadata": {},
    "source": [
     "---\n",
-    "## 📚 References and Next Steps\n",
-    "- [Gen3 Client Documentation](https://gen3.org/resources/user/gen3-client/)\n",
-    "- [Gen3 Commons Portal](https://gen3.datacommons.io/)\n",
+    "## 📚 References\n",
+    "\n",
+    "\n",
+    "\n",
+    "1. **Do N, Grossman RL, Feldman T, et al. (2019)**. “The Veterans Precision Oncology Data Commons: Transforming VA data into a national resource for research in precision oncology.” *Seminars in Oncology* **46**(4–5):314–320. DOI: [10.1053/j.seminoncol.2019.09.002](https://doi.org/10.1053/j.seminoncol.2019.09.002) \n",
+    "\n",
+    "2. **Elbers DC, Fillmore NR, Sung F‑C, et al. (2020)**. “The Veterans Affairs Precision Oncology Data Repository, a Clinical, Genomic, and Imaging Research Database.” *Patterns* **1**:100083. DOI: [10.1016/j.patter.2020.100083](https://doi.org/10.1016/j.patter.2020.100083) \n",
+    "\n",
+    "3. **Cheng D, Ramos‑Cejudo J, Tuck D, et al. (2019)**. “External validation of a prognostic model for mortality among patients with non‑small‑cell lung cancer using the Veterans Precision Oncology Data Commons.” *Seminars in Oncology* **46**(4–5):327–333. DOI: [10.1053/j.seminoncol.2019.09.006](https://doi.org/10.1053/j.seminoncol.2019.09.006) \n",
+    "\n",
+    "\n",
+    "\n",
+    "---\n",
+    "\n",
+    "### 🔗 Useful Resources\n",
+    "\n",
+    "- [Gen3 Client Documentation](https://gen3.org/resources/user/gen3-client/)  \n",
+    "- [Gen3 Commons Portal](https://gen3.datacommons.io/)  \n",
     "- [VPODC Project Overview](https://vpodc.data-commons.org/)\n",
     "\n",
-    "If you encounter download errors (e.g., HTTP 403), ensure your Gen3 credentials are correctly configured and your profile has access permissions.\n",
+    "---\n",
     "\n",
-    "For additional help, contact your system administrator or Gen3 support."
+    "> ⚠️ If you encounter download errors (e.g., HTTP 403), ensure your Gen3 credentials are correctly configured and your profile has appropriate access.  \n",
+    "> For additional support, contact your system administrator or the Gen3 support team.\n"
    ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -2138,7 +2154,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.6"
+   "version": "3.6.10"
   }
  },
  "nbformat": 4,