Why interleaving enhances inductive learning: the roles of discrimination and retrieval
Memory & Cognition (2013) - Comment
pubmed: 23138567  doi: 10.3758/s13421-012-0272-7  issn: 1532-5946  issn: 0090-502x 

Monica S. Birnbaum, Nate Kornell, Elizabeth Ligon Bjork, Robert A. Bjork