TY - JOUR AU - Roediger, H L, III; Butler, A C TI - The critical role of retrieval practice in long-term retention JO - Trends Cogn Sci IS - 01 VL - 15 PY - 2011 DO - 10.1016/j.tics.2010.09.003 L3 - PubMed-ID: 20951630 SP - 20 EP - 27 ER -