Weber, J., et al. “Heading and Risk of Injury Situations for the Head in Professional German Football: A Video Analysis of over 150,000 Headers in 110,000 Match Minutes.” Sci Med Footb, 2022, pp. 1–8.

Meyer, Tim, and Claus Reinsberger. “Do Head Injuries and Headers in Football Lead to Future Brain Damage? A Discussion Lacking Appropriate Scientific Diligence.”10.1080/24733938.2017.1416950__Science and Medicine in Football, vol. 2, no. 1, Informa UK Limited, 2018, pp. 1–2, doi:10.1080/24733938.2017.1416950.