TY  - RPRT
TI  - Temperamental factors in human development.
AU  - J Kagan
AU  - N Snidman
PY  - 1991
DO  - 10.1037//0003-066x.46.8.856
UR  - https://pubmed.ncbi.nlm.nih.gov/1928938/
ID  - 1928938
ER  -