Deontic introduction: A theory of inference from is to ought
Journal of Experimental Psychology Learning Memory and Cognition (2015) - Comment
pubmed: 25642844  doi: 10.1037/a0038686  issn: 1939-1285  issn: 0278-7393 

Shira Elqayam, Valerie A. Thompson, Meredith R. Wilkinson, Jonathan St. B. T. Evans, David E. Over