TY  - RPRT
TI  - Effect of distributed practice upon initial solution to a jigsawlike puzzle.
AU  - E I Gavurin
PY  - 1965
DO  - 10.2466/pms.1965.21.3.892
UR  - https://pubmed.ncbi.nlm.nih.gov/5855937/
ID  - 5855937
ER  -