TY  - RPRT
TI  - Primary traits of Eysenck's P-E-N system: three- and five-factor solutions.
AU  - P T Costa
AU  - R R McCrae
PY  - 1995
DO  - 10.1037//0022-3514.69.2.308
UR  - https://pubmed.ncbi.nlm.nih.gov/7643307/
ID  - 7643307
ER  -