| We cite [REL09]_ or REL09_ | |
| or even rel09_. See REL08_. | |
| .. [REL09] Citation | |
| .. <warning descr="Duplicate explicit target name 'REL08'">[REL08]</warning> Citation | |
| .. <warning descr="Duplicate explicit target name 'REL08'">[REL08]</warning> Citation2 | |
| .. <warning descr="Duplicate explicit target name 'new link'">_`new link`:</warning> http://python.org | |
| .. <warning descr="Duplicate explicit target name 'new link'">_new link:</warning> http://pythonic.org |