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@@ -151,16 +151,12 @@ <h3>Project information</h3>
               <li><strong>Project URL</strong>: <a href="https://github.com/arunp77/Gravitational-collapse" target="_blank">Go to the repository</a></li>
             </ul>
           </div>
-          <div class="section-title">
-            <h2>Gravitational-collapse</h2>
+        </div>
+
+        <h2>Gravitational-collapse</h2>
             <p>Gravitational collapse is a fascinating and complex phenomenon in astrophysics that occurs when a massive object, such as a star, 
               reaches the end of its life cycle. It involves the force of gravity overpowering other forces, leading to the object's collapse under 
               its own gravitational pull. </p>
-            <h2>Other research codes:</h2>
-            <p>I will provide details on other codes soon.</p>
-          </div>
-        </div>
-
         <ol>
           <li><strong>Equilibrium and Stability: </strong>Stars achieve equilibrium through a balance between the gravitational force pulling inwards and the pressure (thermal or radiation pressure) pushing outwards. This equilibrium is crucial for the star to maintain a stable size and shape throughout most of its life.</li>
           <li><strong>Conditions for Gravitational Collapse: </strong>When a massive star exhausts its nuclear fuel, it can no longer produce the energy necessary to maintain the pressure that counteracts gravity. Depending on the mass of the star, various outcomes can occur, such as supernovae, neutron stars, or black holes.</li>
@@ -362,6 +358,7 @@ <h3>2D Monte Carlo simulation of gravitational collapse:</h3>
               <li><a href="https://link.springer.com/chapter/10.1007/978-1-4615-1339-1_15" target="_blank">Gravitational Collapse A. Beesham & S. G. Ghosh</a></li>
               <li><a href="https://www.nature.com/articles/204868a0" target="_blank">Gravitational-collapse, W. B. BONNOR</a></li>
               <li><a href="https://github.com/arunp77/Gravitational-collapse" target="_blank">GitHub repo on gravitational collapse.</a></li>
+              <li><a href="https://journals.aps.org/pr/abstract/10.1103/PhysRev.173.1258" target="_blank">Gravitational Collapse of Rotating Bodies Jeffrey M. Cohen</a></li>
             </ul>
             
           </Section>