TY  - RPRT
TI  - Codes and modalities in multiple resources: a success and a qualification.
AU  - C D Wickens
AU  - Y Liu
PY  - 1988
DO  - 10.1177/001872088803000505
UR  - https://pubmed.ncbi.nlm.nih.gov/3220489/
ID  - 3220489
ER  -