<p>Time to continue the CVJC series.</p>

<p>To remind for those who are new to the idea:</p>

<ul>
<li>CVJC is a whole day meeting on <a href="http://chat.stackexchange.com/rooms/18/ten-fold">chat</a> where we discuss some paper and its theoretical/practical surroundings.</li>
<li>As mentioned above the event is whole-day (00:00-23:59UTC), but there is a  meet-up session on which most talking take place.</li>
<li>The paper must be OpenAccess or a (p)reprint suggested previously on a meta thread like this one and selected in voting. </li>
<li>We will try to invite the author(s).</li>
</ul>

<p>So, please suggest papers (each in one answer)! The deadline for suggestions is traditionally a week ahead, so 23:59UTC 2.5.2011.
The CVJC4 will take place circa a week after that.</p>

<p>EDIT: As you can see, we'll be talking about our beloved Impact Factor [=<br>
 The journal club is scheduled for Friday, 27.5.2011. The event remains whole day, but this time there will be <strong>one</strong> meet-up session at 17:00UTC (12:00CDT, 19:00CEST) -- featuring at least one of the authors. See you then; and don't forget to register <a href="http://chat.stackexchange.com/rooms/info/18/ten-fold?tab=schedule">here</a>.</p>
