TY  - RPRT
TI  - Age differences in relationships between crystallized and fluid intelligences and problem solving.
AU  - B Hayslip
AU  - H L Sterns
PY  - 1979
DO  - 10.1093/geronj/34.3.404
UR  - https://pubmed.ncbi.nlm.nih.gov/429775/
ID  - 429775
ER  -