TY  - RPRT
TI  - A descriptive model for determining optimal human performance in systems. Volume 2 - Part A - System development activities concerned with putting man in an aerospace system. Part B - Development of man- machine systems - Some concepts and guidelines
PY  - 1968
UR  - https://ntrs.nasa.gov/citations/19680005651
ID  - 19680005651
ER  -