TY  - RPRT
TI  - Spur gears: Optimal geometry, methods for generation and Tooth Contact Analysis (TCA) program
AU  - Litvin, Faydor L.
AU  - Zhang, Jiao
PY  - 1988
UR  - https://ntrs.nasa.gov/citations/19880013832
ID  - 19880013832
ER  -