TY  - RPRT
TI  - Speed effects on ball spinning torque
AU  - Dietrich, M. W.
AU  - Townsend, D. P.
AU  - Zaretsky, E. V.
PY  - 1969
UR  - https://ntrs.nasa.gov/citations/19690031821
ID  - 19690031821
ER  -