A study on the problems of amateur baseball, based on a survey of active professional baseball players.Masumi Kuwata,Kotaro Kawana,Yasuhiro Manita,Takeo Hiratamag(2010)引用 23|浏览0暂无评分AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要