TY  - RPRT
TI  - Fixed-base simulation evaluation of various low-visibility landing systems for helicopters
AU  - Koziol, J. S., Jr.
AU  - Rempfer, P. S.
AU  - Stevenson, L. E.
PY  - 1971
UR  - https://ntrs.nasa.gov/citations/19710010830
ID  - 19710010830
ER  -