A Programming-by-demonstration Tool for Retargeting Instructional. - Steven Ritter 001; Stephen Bruce Blessing (ICLS, 1996)

User Modeling and Problem-Space Representation in the Tutor Runtime Engine. - Steven Ritter 001; Stephen Blessing; Leslie Wheeler (User Modeling, 2003)

Developing an Authoring System for Cognitive Models within Commercial-Quality ITSs. - Stephen Blessing; Stephen B. Gilbert; Steven Ritter 001 (FLAIRS, 2006)

Lowering the Bar for Creating Model-Tracing Intelligent Tutoring Systems. - Stephen Blessing; Stephen B. Gilbert; Steven Ourada; Steven Ritter 001 (AIED, 2007)

Evaluating an Authoring Tool for Model-Tracing Intelligent Tutoring Systems. - Stephen Blessing; Stephen B. Gilbert (Intelligent Tutoring Systems, 2008)

The Extensible Problem-Specific Tutor (xPST): Evaluation of an API for Tutoring on Existing Interfaces. - Stephen B. Gilbert; Stephen Blessing; Sateesh Kumar Kodavali (AIED, 2009)

The accidental tutor: overlaying an intelligent tutor on an existing user interface. - Stephen B. Gilbert; Stephen Blessing; Liz Blankenship (CHI Extended Abstracts, 2009)

From SDK to xPST: A New Way to Overlay a Tutor on Existing Software. - Stephen Bruce Blessing; Stephen B. Gilbert; Liz Blankenship; Bhavesh Sanghvi (FLAIRS, 2009)

Authoring Model-Tracing Cognitive Tutors. - Stephen Blessing; Stephen B. Gilbert; Steven Ourada; Steven Ritter 001 (Int. J. Artif. Intell. Educ., 2009)

Expansion of the xPST Framework to Enable Non-programmers to Create Intelligent Tutoring Systems in 3D Game Environments. - Sateesh Kumar Kodavali; Stephen B. Gilbert; Stephen Bruce Blessing (Intelligent Tutoring Systems (2), 2010)

Evaluation of WebxPST: A Browser-Based Authoring Tool for Problem-Specific Tutors. - Stephen Bruce Blessing; Shrenik Devasani; Stephen B. Gilbert (AIED, 2011)

Lattice-Based Approach to Building Templates for Natural Language Understanding in Intelligent Tutoring Systems. - Shrenik Devasani; Gregory Aist; Stephen Bruce Blessing; Stephen B. Gilbert (AIED, 2011)

Evaluating ConceptGrid: An Authoring System for Natural Language Responses. - Stephen Bruce Blessing; Shrenik Devasani; Stephen B. Gilbert (FLAIRS, 2012)

ExploreIT! An Adaptive Tutor in an Informal Learning Environment. - Stephen Bruce Blessing; Jeffrey S. Skowronek; Ana-Alycia Quintana (AIED, 2013)

The Power of Personalization: Making a Museum Visit More Memorable with a Personalized Story. - Stephen Blessing; Jeffrey S. Skowronek (CogSci, 2014)

Authoring Effective Embedded Tutors: An Overview of the Extensible Problem Specific Tutor (xPST) System. - Stephen B. Gilbert; Stephen Blessing; Enruo Guo (Int. J. Artif. Intell. Educ., 2015)

Using ConceptGrid as an easy authoring technique to check natural language responses. - Stephen Blessing; Shrenik Devasani; Stephen B. Gilbert; Jivko Sinapov (Int. J. Learn. Technol., 2015)