The present disclosure provides for augmenting a presentation document to auto-cite references to material present in non-displayed parts of the presentation document identified via natural language processing (NLP) via displaying, in a graphical user interface (GUI), a given zone of a plurality of zones included in a presentation document; identifying, in an utterance received while the given zone is displayed in the GUI, a given key concept; identifying, via a content association map associated with the presentation document that identifies key concepts recited in the presentation document and which zones of the plurality of zones the key concepts appear in, a different zone of the plurality of zones that is not currently displayed in the GUI but in which the given key concept appears; and displaying, in the GUI concurrently with display of the given zone, a visual indicator related to the different zone.