Cite
HARVARD Citation
Wu, Y. et al. (2016). An eight-speed rear transmission hub with a novel cam-type gear-shifting mechanism for bicycles. Smart science. 4 (2), pp. 71-77. [Online].
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Wu, Y. et al. (2016). An eight-speed rear transmission hub with a novel cam-type gear-shifting mechanism for bicycles. Smart science. 4 (2), pp. 71-77. [Online].