TY  - RPRT
TI  - Variations in ATC-work load as a function of variations in cockpit workload.
AU  - J P Krol
PY  - 1971
DO  - 10.1080/00140137108931279
UR  - https://pubmed.ncbi.nlm.nih.gov/5148235/
ID  - 5148235
ER  -