On the feedburner page there is a link titled "View Feed XML". When opening it and then doing a "View Page Source" in your browser, you'll see the raw XML feed. But just using wget or curl seems to be less cumbersome to me.
If you look at the raw feed, you'll see that in there is no information or link about publicdomainreview.com.
So without further processing of the feed items, you can't easily get the information you want.