The efficacy of self-paced study in multitrial learning
Journal of Experimental Psychology Learning Memory and Cognition (2015) - Comment
pubmed: 25133515  doi: 10.1037/xlm0000046  issn: 1939-1285  issn: 0278-7393 

Mario De Jonge, Huib K. Tabbers, Diane Pecher, Yoonhee Jang, René Zeelenberg