<p>Thought this would be of interest here:</p>
<p><a href="http://tech.mit.edu/V134/N30/yield.html">http://tech.mit.edu/V134/N30/yield.html</a></p>
<p>Thought this would be of interest here:</p>
<p><a href="http://tech.mit.edu/V134/N30/yield.html">http://tech.mit.edu/V134/N30/yield.html</a></p>