Self-regulated learning of a natural category: do people interleave or block exemplars during study?
Psychonomic Bulletin & Review (2013) - Comment
pubmed: 23055143  doi: 10.3758/s13423-012-0319-6  issn: 1531-5320  issn: 1069-9384 

Sarah K. Tauber, John Dunlosky, Katherine A. Rawson, Christopher N. Wahlheim, Larry L. Jacoby