<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Lewis, Clayton / Rieman, John</hi> (1994): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Task-Centered User Interface Design</hi>. A Practical Introduction. <ref xmlns="http://www.tei-c.org/ns/1.0" target="http://grouplab.cpsc.ucalgary.ca/saul/hci_topics/tcsd-book/contents.html">http://grouplab.cpsc.ucalgary.ca/saul/hci_topics/tcsd-book/contents.html</ref> [letzter Zugriff 14. Oktober 2015].