``` % pandoc -f rst `click here`__ or `click here`__ .. _link1: http://www.example.com/ .. _link2: http://johnmacfarlane.net/pandoc/ __ link1_ __ link2_ ^D <p><a href="http://www.example.com/">click here</a> or <a href="http://johnmacfarlane.net/pandoc/">click here</a></p> ``` Multiple indirection: ``` % pandoc -f rst `click here`__ .. _link1: link2_ .. _link2: http://johnmacfarlane.net/pandoc/ __ link1_ ^D <p><a href="http://johnmacfarlane.net/pandoc/">click here</a></p> ``` Loop detection: ``` % pandoc -f rst `click here`__ .. _link1: link2_ .. _link2: link1_ __ link1_ ^D [WARNING] Circular reference 'link1' at line 1 column 15 <p><a href="">click here</a></p> ```