diff --git a/notebooks/cognee_demo.ipynb b/notebooks/cognee_demo.ipynb
index b945b969f..2a80e3f7f 100644
--- a/notebooks/cognee_demo.ipynb
+++ b/notebooks/cognee_demo.ipynb
@@ -146,8 +146,8 @@
             "metadata": {},
             "source": [
                 "#### - Multilayer network is cognitive multilayer networks as a quantitative and interpretative framework for investigating the mental lexicon. \n",
-                "#### - The mental lexicon is a complex cognitive system representing information about the words/concepts that one knows Article 2\n",
-                "#### - Propositions are defined as atomic expressions within text, each encapsulating a distinct factoid and presented in a concise, self-contained natural language format. Article 1"
+                "#### - The mental lexicon is a complex cognitive system representing information about the words/concepts that one knows ([Article 2](https://link.springer.com/article/10.3758/s13423-024-02473-9))\n",
+                "#### - Propositions are defined as atomic expressions within text, each encapsulating a distinct factoid and presented in a concise, self-contained natural language format. ([Article 1](https://arxiv.org/pdf/2312.06648.pdf))"
             ]
         },
         {