TY  - RPRT
TI  - Design guidelines for operator entry-exit systems on mobile equipment.
AU  - D J Bottoms
PY  - 1983
DO  - 10.1016/0003-6870(83)90153-9
UR  - https://pubmed.ncbi.nlm.nih.gov/15676467/
ID  - 15676467
ER  -