TY  - RPRT
TI  - Four systems for emotion activation: cognitive and noncognitive processes.
AU  - C E Izard
PY  - 1993
DO  - 10.1037/0033-295x.100.1.68
UR  - https://pubmed.ncbi.nlm.nih.gov/8426882/
ID  - 8426882
ER  -