A test of Rescorla and Wagner's (1972) prediction of nonlinear effects in contingency learning
Learning & Behavior (2012) - Comment
pubmed: 22451374  doi: 10.3758/s13420-012-0070-x  issn: 1543-4508  issn: 1543-4494 

Joaquín Moris, Susana Carnero, Ignacio Loy