title: Multiple author in org-mode latex export
body: <p>I write a lot of files in org-mode of Emacs which is awesome.
  I started to do writing of scientific papers in org-mode.
  But: the article has several authors.</p>
  
  <p>I used</p>
  
  <pre><code>#+AUTHOR: Author 1, Author 2
  </code></pre>
  
  <p>It exports to Latex correctly.</p>
  
  <p>However, I need emails and institutions of the authors. 
  Can I do it directly in org-mode?</p>
  
  <p>the command</p>
  
  <pre><code>#+EMAIL: email1, email2 
  </code></pre>
  
  <p>picks the last one.</p>