• Richard N. Shiffman, George Michel, Michael Krauthammer, Norbert E. Fuchs, Kaarel Kaljurand, Tobias Kuhn. Controlled Natural Language for Clinical Practice Guidelines. Pre-Proceedings of the Workshop on Controlled Natural Language (CNL 2009), CEUR Workshop Proceedings, 2009.
• Tamseela Hussain, George Michel, Richard N. Shiffman: The Yale Guideline Recommendation Corpus: A Representative Sample of the Knowledge Content of Guidelines, International Journal of Medical Informatics (to be published).
• Tamseela Hussain, George Michel, Richard N. Shiffman: How Often is Strength of Recommendation Indicated in Guidelines? Analysis of the Yale Guideline Recommendation Corpus , Proc AMIA Symp 2008; (to be published).