If you use the Toolkit or any of its components to obtain research results that are published, then as per clause 3 of the license, you are required to cite us appropriately. Please use:

All Together Now: Introducing the Virtual Human Toolkit (Arno Hartholt, David Traum, Stacy C. Marsella, Ari Shapiro, Giota Stratou, Anton Leuski, Louis-Philippe Morency, Jonathan Gratch), In International Conference on Intelligent Virtual Humans, 2013. [bib] [pdf]

Other relevant papers are listed below. You can search for all ICT papers here.

Individual Modules
NonVerbal Behavior Generator
Research Systems
General Virtual Humans