%0 Journal Article %T Resultant tennis ball velocity as a function of off‐center impact and grip firmness %A GRABINER, MARK D. %A GROPPEL, JACK L. %A CAMPBELL, KEVIN R. %J Medicine & Science in Sports & Exercise %V 15 %N 6 %@ 0195-9131 %D 1983-01-01 %~ DeepDyve