A plurality of parts of existing net halter for ball games, in particular for spring ball games.

• 1. 用于球类比赛的锻炼装置 [P] . 中国专利： CN109152951B . 2021.09.10
• 2. 用于在球类比赛中自动检测裁判员的裁决的方法和系统 [P] . 中国专利： CN112771571A . 2021-05-07
• 3. Space spring-ball game - has handled net for catching, passing or shooting ball with player standing on dome of pogo-stick with inflatable ball [P] . BE904375A . 1986-06-30

  机译： 太空弹簧球游戏-操纵者站在带充气球的弹簧球顶上时，可抓网，接球或传球

• 4. Space spring-ball game - has handled net for catching, passing or shooting ball with player standing on dome of pogo-stick with inflatable ball [P] . BE904375A2 . 1986-06-30

  机译： 太空弹簧球游戏-操纵者站在带充气球的弹簧球顶上时，可抓网，接球或传球

• 5. Soccer ball and method for manufacture of a ball for games. [P] . BRPI0409509B1 . 2017-05-02

  机译： 足球和用于制造比赛用球的方法。

• 1. Magnetorheological finishing of an irregular-shaped small-bore complex component using a small ball-end permanent-magnet polishing head [J] . Henan Liu, Jian Cheng, Tingzhang Wang, 纳米技术与精密工程（英文） . 2019,第003期
• 2. DEVELOPMENT OF SEISMIC ISOLATION TABLE SUPPORTED BY BALL TRANSFER UNITS AND CIRCULAR SPRINGS WITH MAGNETIC DAMPING [C] . World conference on earthquake engineering . 2004
• 3. An investigation of Scholar -Baller and Non Scholar -Baller Division I football student -athletes' academic, athletic, intrinsic motivation and athletic identity. [D] . Rasmussen, Janet M. 2009
• 4. External Load Variations Between Medium- and Large-Sided Soccer Games: Ball Possession Games Vs Regular Games with Small Goals [O] . Filipe Manuel Clemente, Gibson Moreira Praça, Sarah da Glória Teles Bredt, 2019
• 5. Players' perceptions of self-satisfaction and team cohesion in netball, a modified netball game (V-ball) or both games. [O] . Clancy Sian Antonia 2012
• 6. A Nonstandard Theory of Games. Part II. On Non-Atomic Representations of *Finite Games. [R] . Lewis, A. A. 1979

• 1. Research on the Internationalization Trend for the Development of Worldwide Competitive Ball Games and Our Countermeasures [J] . Yixin Ma . International Journal of Technology Management . 2015,第008期
• 2. Revisiting Magnetic Net and a Bouncing Magnetic Ball [J] . Haiduke Sarafian . 电磁分析与应用期刊（英文） . 2012,第6期
• 3. Design and Analysis of a Horizontal Quasi-Zero Stiffness Vibration Isolator by Combining Rolling-Ball and Disk Springs in Parallel [J] . Gaofeng Guan ,Dengfeng Xu ,Yu Zhu . 北京理工大学学报：英文版 . 2017,第4期
• 4. Magnetorheological finishing of an irregular-shaped small-bore complex component using a small ball-end permanent-magnet polishing head [J] . Henan Liu ,Jian Cheng ,Tingzhang Wang . 纳米技术与精密工程 . 2019,第003期
• 5. 大学球类专项课实施比赛导入教学法的实验研究——以排球教学为例 [C] . Qijun LAI ,赖其军 . 2012学校体育科学学术会议（2012 Academic Conference of School Physical Education Science(SPES2012） . 2012
• 6. 体育院校体育教育专业小球类(乒、羽、网)专项课程改革的研究 [A] . 刘双 . 2013