>2冊目は「テニスの法則」の続編でしょうかね。
こっちは全米ストリンガー協会のヤツですね
Publisher: USRSA (April 1, 2004)
Amazon.com: The Physics and Technology of Tennis: Howard Brody, Rod Cross, Crawford Lindsey: Books http://www.amazon.com/dp/0972275908/
こちらも参照
The Physics and Technology of Tennis Learning Center http://www.usrsa.com/store/learningcenter/learningcenter.html
“Technical Tennis”
http://www.amazon.com/dp/0972275932/
“The Physics and Technology of Tennis”
http://www.amazon.com/dp/0972275908/
という2冊が詳しいと思いますが、ご覧になったことはありますか?
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