Today I came across interesting results whilst checking rankings for one of clients. I typed “matrimonio roma” in Google.it and one of the listings had quite unusual description as it contained a link (not a breadcrumb nor sitelinks etc)…

Link Within Description in Google

When I inspected the element, the link looked like: http://www.google.it/url?url=http://it.wikipedia.org/wiki/Matrimonio%23Il_matrimonio_nella_Roma_antica&rct=j&q=matrimonio+roma&usg=AFQjCNGWA5FtpbOchaPTnmGieSsOFmSqgw&ei=0DD8S7PSFeGN4gayxbi7Ag&sa=X&oi=section_link&resnum=15&ct=legacy&ved=0CF4QygQ

The question is, how this description has been generate/ created? I couldn’t find it when I read the source code. Also, this phrase has been used twice on the Wikipedia pages (it is also a title of a chapter there), so would it have any influence on the fact that it appeared in Google SERP? Would it mean some crucial changes in Google algorithm? What do you think?