TY  - JOUR
PY  - 1979//
TI  - Methodological considerations of visual workloads of helicopter pilots
JO  - Human factors
A1  - Simmons, R. R.
SP  - 353
EP  - 367
VL  - 21
IS  - 3
N2  - Abstract unavailable.
LA  - 
SN  - 0018-7208
UR  - http://dx.doi.org/
ID  - ref1
ER  -