TY  - RPRT
TI  - The effect of processing code, response modality and task difficulty on dual task performance and subjective workload in a manual system
AU  - Liu, Yili
AU  - Wickens, Christopher D.
PY  - 1987
UR  - https://ntrs.nasa.gov/citations/19880048234
ID  - 19880048234
ER  -