TY  - RPRT
TI  - Massed versus distributed practice in computerized spelling drills.
AU  - E J Fishman
AU  - L Keller
AU  - R C Atkinson
PY  - 1968
DO  - 10.1037/h0020055
UR  - https://pubmed.ncbi.nlm.nih.gov/5672245/
ID  - 5672245
ER  -