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     <h2>FZJ/JSC Training Course</h2>
     <div clsas="sidenote">
       <p class="inactive">Occasion 1: Thursday, 27 May 2021, 9:00 - 12:30, <strong>online</strong></p>
-      <p class="active">Occasion 2: Wednesday, 2 June 2021, 9:00 - 12:30, <strong>online</strong></p>
+      <p class="inactive">Occasion 2: Wednesday, 2 June 2021, 9:00 - 12:30, <strong>online</strong></p>
       <p>Pandas solves the full stack of data analysis in Python; reading-in of data, mangling and manipulation, analysis, and visualisation (and much more, actually). It builds up on established Python packages and can be used interchangeably with them (like Numpy, matplotlib); it fits perfectly into the Jupyter Notebooks workflow of modern-day data analysis. 🐼</p>
       <p>Setup: Lecture/hands-on sessions with prepared Jupyter Notebooks</p>
-      <p><strong>Video Conference</strong>: <a href="https://webconf.fz-juelich.de/b/and-dpz-oxw-rwc">webconf.fz-juelich.de/b/and-dpz-oxw-rwc</a></p>
+      <p>Via Video Conference</p>
     </div>
   </header>
   <section id="main">
     <h1>Tutorial Material</h1>
     <ul>
-      <li>Task bundle (Notebooks, data): <a href="pandas-tutorial-tasks.tar.gz"><code>.tar.gz</code></a>, <a href="pandas-tutorial-tasks.zip"><code>.zip</code></a></li>
+      <li>Task bundle (Notebooks, data): <a href="pandas-tutorial-tasks.tar.gz"><code>.tar.gz</code></a>, <a href="pandas-tutorial-tasks.zip"><code>.zip</code></a>
+        <ul>
+          <li><a href="Introduction-to-Pandas--tasks.ipynb">Tasks Notebook</a> (via <a href="https://nbviewer.jupyter.org/urls/herten1.pages.jsc.fz-juelich.de/jsc-pandas-introduction/Introduction-to-Pandas--tasks.ipynb">nbviewer</a>)</li>
+          <li><a href="Introduction-to-Pandas--solution.ipynb">Solutions Notebook</a> (via <a href="https://nbviewer.jupyter.org/urls/herten1.pages.jsc.fz-juelich.de/jsc-pandas-introduction/Introduction-to-Pandas--solution.ipynb">nbviewer</a>)</li>
+      </li>
       <li>Slides
         <ul>
           <li><a href="Introduction-to-Pandas--slides.pdf">PDF</a> (exported from HTML presentation; imperfect)</li>
-          <li><a href="Introduction-to-Pandas--slides.ipynb">Jupyter Notebook</a></li>
+          <li><a href="Introduction-to-Pandas--slides.ipynb">Jupyter Notebook</a> (via <a href="https://nbviewer.jupyter.org/urls/herten1.pages.jsc.fz-juelich.de/jsc-pandas-introduction/Introduction-to-Pandas--slides.ipynb">nbviewer</a>)</li>
           <li>HTML presentation bundle: <a href="pandas-tutorial-slides-bundle.tar.gz"><code>.tar.gz</code></a>, <a href="pandas-tutorial-slides-bundle.zip"><code>.zip</code></a></li>
         </ul>
       </li>