<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Wall, Larry </hi>(1999): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Perl, the first postmodern computer language</hi> <ref xmlns="http://www.tei-c.org/ns/1.0" target="http://www.wall.org/~larry/pm.html">http://www.wall.org/~larry/pm.html</ref> [letzter Zugriff 19. August 2015].