Observing behavior and atypically restricted stimulus control - Dube, William V.; Dickson, Chata A.; Balsamo, Lyn M.; O'Donnell, Kristin Lombard; Tomanari, Gerson Yukio; Farren, Kevin M.; Wheeler, Emily E.; McIlvane, William J. (Journal of the Experimental Analysis of Behavior, 2010)